Bump version to 0.0.113

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.105
+    rev: v0.0.113
     hooks:
       - id: ruff
 

Cargo.lock

@@ -14,7 +14,7 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
 dependencies = [
- "getrandom 0.2.7",
+ "getrandom 0.2.8",
  "once_cell",
  "version_check",
 ]
@@ -51,9 +51,9 @@ checksum = "c7021ce4924a3f25f802b2cccd1af585e39ea1a363a1aa2e72afe54b67a3a7a7"
 
 [[package]]
 name = "anyhow"
-version = "1.0.65"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98161a4e3e2184da77bb14f02184cdd111e83bbbcc9979dfee3c44b9a85f5602"
+checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6"
 
 [[package]]
 name = "ascii"
@@ -72,11 +72,11 @@ dependencies = [
 
 [[package]]
 name = "assert_cmd"
-version = "2.0.4"
+version = "2.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93ae1ddd39efd67689deb1979d80bad3bf7f2b09c6e6117c8d1f2443b5e2f83e"
+checksum = "ba45b8163c49ab5f972e59a8a5a03b6d2972619d486e19ec9fe744f7c2753d3c"
 dependencies = [
- "bstr",
+ "bstr 1.0.1",
  "doc-comment",
  "predicates",
  "predicates-core",
@@ -111,9 +111,9 @@ dependencies = [
 
 [[package]]
 name = "async-global-executor"
-version = "2.3.0"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0da5b41ee986eed3f524c380e6d64965aea573882a8907682ad100f7859305ca"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
 dependencies = [
  "async-channel",
  "async-executor",
@@ -126,16 +126,16 @@ dependencies = [
 
 [[package]]
 name = "async-io"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83e21f3a490c72b3b0cf44962180e60045de2925d8dff97918f7ee43c8f637c7"
+checksum = "e8121296a9f05be7f34aa4196b1747243b3b62e048bb7906f644f3fbfc490cf7"
 dependencies = [
+ "async-lock",
  "autocfg",
  "concurrent-queue",
  "futures-lite",
  "libc",
  "log",
- "once_cell",
  "parking",
  "polling",
  "slab",
@@ -146,11 +146,12 @@ dependencies = [
 
 [[package]]
 name = "async-lock"
-version = "2.5.0"
+version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e97a171d191782fba31bb902b14ad94e24a68145032b7eedf871ab0bc0d077b6"
+checksum = "c8101efe8695a6c17e02911402145357e718ac92d3ff88ae8419e84b1707b685"
 dependencies = [
  "event-listener",
+ "futures-lite",
 ]
 
 [[package]]
@@ -238,9 +239,9 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.13.0"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "bincode"
@@ -328,10 +329,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "bumpalo"
-version = "3.11.0"
+name = "bstr"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
+checksum = "fca0852af221f458706eb0725c03e4ed6c46af9ac98e6a689d5e634215d594dd"
+dependencies = [
+ "memchr",
+ "once_cell",
+ "regex-automata",
+ "serde",
+]
+
+[[package]]
+name = "bumpalo"
+version = "3.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "572f695136211188308f16ad2ca5c851a712c464060ae6974944458eb83880ba"
 
 [[package]]
 name = "byte-tools"
@@ -382,9 +395,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cc"
-version = "1.0.73"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+checksum = "41ca34107f97baef6cfb231b32f36115781856b8f8208e8c580e0bcaea374842"
 
 [[package]]
 name = "cfg-if"
@@ -464,14 +477,14 @@ dependencies = [
  "bitflags",
  "clap_lex 0.2.4",
  "indexmap",
- "textwrap 0.16.0",
+ "textwrap",
 ]
 
 [[package]]
 name = "clap"
-version = "4.0.15"
+version = "4.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bf8832993da70a4c6d13c581f4463c2bdda27b9bf1c5498dc4365543abe6d6f"
+checksum = "91b9970d7505127a162fdaa9b96428d28a479ba78c9ec7550a63a5d9863db682"
 dependencies = [
  "atty",
  "bitflags",
@@ -484,9 +497,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.0.13"
+version = "4.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c42f169caba89a7d512b5418b09864543eeb4d497416c917d7137863bd2076ad"
+checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -701,9 +714,9 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "ctor"
-version = "0.1.23"
+version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdffe87e1d521a10f9696f833fe502293ea446d7f256c06128293a4119bdf4cb"
+checksum = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"
 dependencies = [
  "quote",
  "syn",
@@ -711,9 +724,9 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "1.0.78"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19f39818dcfc97d45b03953c1292efc4e80954e1583c4aa770bac1383e2310a4"
+checksum = "97abf9f0eca9e52b7f81b945524e76710e6cb2366aead23b7d4fbf72e281f888"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -723,9 +736,9 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "1.0.78"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e580d70777c116df50c390d1211993f62d40302881e54d4b79727acb83d0199"
+checksum = "7cc32cc5fea1d894b77d269ddb9f192110069a8a9c1f1d441195fba90553dea3"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -738,15 +751,15 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.78"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56a46460b88d1cec95112c8c363f0e2c39afdb237f60583b0b36343bf627ea9c"
+checksum = "8ca220e4794c934dc6b1207c3b42856ad4c302f2df1712e9f8d2eec5afaacf1f"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.78"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "747b608fecf06b0d72d440f27acc99288207324b793be2c17991839f3d4995ea"
+checksum = "b846f081361125bfc8dc9d3940c84e1fd83ba54bbca7b17cd29483c828be0704"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -902,9 +915,9 @@ dependencies = [
 
 [[package]]
 name = "filetime"
-version = "0.2.17"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e94a7bbaa59354bc20dd75b67f23e2797b4490e9d6928203fb105c79e448c86c"
+checksum = "4b9663d381d07ae25dc88dbdf27df458faa83a9b25336bcac83d5e452b5fc9d3"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
@@ -920,10 +933,10 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
 
 [[package]]
 name = "flake8-to-ruff"
-version = "0.0.105-dev.0"
+version = "0.0.113-dev.0"
 dependencies = [
  "anyhow",
- "clap 4.0.15",
+ "clap 4.0.22",
  "configparser",
  "once_cell",
  "regex",
@@ -995,9 +1008,9 @@ checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
 [[package]]
 name = "futures"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f21eda599937fba36daeb58a22e8f5cee2d14c4a17b5b7739c7c8e5e3b8230c"
+checksum = "38390104763dc37a5145a53c29c63c1290b5d316d6086ec32c293f6736051bb0"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1010,9 +1023,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30bdd20c28fadd505d0fd6712cdfcb0d4b5648baf45faef7f852afb2399bb050"
+checksum = "52ba265a92256105f45b719605a571ffe2d1f0fea3807304b522c1d778f79eed"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -1020,15 +1033,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e5aa3de05362c3fb88de6531e6296e85cde7739cccad4b9dfeeb7f6ebce56bf"
+checksum = "04909a7a7e4633ae6c4a9ab280aeb86da1236243a77b694a49eacd659a4bd3ac"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ff63c23854bee61b6e9cd331d523909f238fc7636290b96826e9cfa5faa00ab"
+checksum = "7acc85df6714c176ab5edf386123fafe217be88c0840ec11f199441134a074e2"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -1037,9 +1050,9 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbf4d2a7a308fd4578637c0b17c7e1c7ba127b8f6ba00b29f717e9655d85eb68"
+checksum = "00f5fb52a06bdcadeb54e8d3671f8888a39697dcb0b81b23b55174030427f4eb"
 
 [[package]]
 name = "futures-lite"
@@ -1058,9 +1071,9 @@ dependencies = [
 
 [[package]]
 name = "futures-macro"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42cd15d1c7456c04dbdf7e88bcd69760d74f3a798d6444e16974b505b0e62f17"
+checksum = "bdfb8ce053d86b91919aad980c220b1fb8401a9394410e1c289ed7e66b61835d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1069,21 +1082,21 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21b20ba5a92e727ba30e72834706623d94ac93a725410b6a6b6fbc1b07f7ba56"
+checksum = "39c15cf1a4aa79df40f1bb462fb39676d0ad9e366c2a33b590d7c66f4f81fcf9"
 
 [[package]]
 name = "futures-task"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6508c467c73851293f390476d4491cf4d227dbabcd4170f3bb6044959b294f1"
+checksum = "2ffb393ac5d9a6eaa9d3fdf37ae2776656b706e200c8e16b1bdb227f5198e6ea"
 
 [[package]]
 name = "futures-util"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44fb6cb1be61cc1d2e43b262516aafcf63b241cffdb1d3fa115f91d9c7b09c90"
+checksum = "197676987abd2f9cadff84926f410af1c183608d36641465df73ae8211dc65d6"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1129,9 +1142,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.7"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6"
+checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
 dependencies = [
  "cfg-if 1.0.0",
  "js-sys",
@@ -1208,9 +1221,9 @@ checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"
 
 [[package]]
 name = "iana-time-zone"
-version = "0.1.51"
+version = "0.1.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5a6ef98976b22b3b7f2f3a806f858cb862044cfa66805aa3ad84cb3d3b785ed"
+checksum = "64c122667b287044802d6ce17ee2ddf13207ed924c712de9a66a5814d5b64765"
 dependencies = [
  "android_system_properties",
  "core-foundation-sys",
@@ -1222,9 +1235,9 @@ dependencies = [
 
 [[package]]
 name = "iana-time-zone-haiku"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fde6edd6cef363e9359ed3c98ba64590ba9eecba2293eb5a723ab32aee8926aa"
+checksum = "0703ae284fc167426161c2e3f1da3ea71d94b21bedbcc9494e92b28e334e3dca"
 dependencies = [
  "cxx",
  "cxx-build",
@@ -1427,14 +1440,14 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.135"
+version = "0.2.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
+checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 
 [[package]]
 name = "libcst"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=32a044c127668df44582f85699358e67803b0d73#32a044c127668df44582f85699358e67803b0d73"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
  "chic",
  "itertools",
@@ -1449,7 +1462,7 @@ dependencies = [
 [[package]]
 name = "libcst_derive"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=32a044c127668df44582f85699358e67803b0d73#32a044c127668df44582f85699358e67803b0d73"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
  "quote",
  "syn",
@@ -1583,9 +1596,9 @@ dependencies = [
 
 [[package]]
 name = "net2"
-version = "0.2.37"
+version = "0.2.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "391630d12b68002ae1e25e8f974306474966550ad82dac6886fb8910c19568ae"
+checksum = "74d0df99cfcd2530b2e694f6e17e7f37b8e26bb23983ac530c0c97408837c631"
 dependencies = [
  "cfg-if 0.1.10",
  "libc",
@@ -1609,6 +1622,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "nohash-hasher"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bf50223579dc7cdcfb3bfcacf7069ff68243f8c363f62ffa99cf000a6b9c451"
+
 [[package]]
 name = "nom"
 version = "5.1.2"
@@ -1680,9 +1699,9 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.13.1"
+version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
+checksum = "f6058e64324c71e02bc2b150e4f3bc8286db6c83092132ffa3f6b1eab0f9def5"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -1690,9 +1709,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.15.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
+checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
 
 [[package]]
 name = "oorandom"
@@ -1714,9 +1733,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "os_str_bytes"
-version = "6.3.0"
+version = "6.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ff7415e9ae3fff1225851df9e0d9e4e5479f947619774677a63572e55e80eff"
+checksum = "3baf96e39c5359d2eb0dd6ccb42c62b91d9678aa68160d261b9e0ccbf9e9dea9"
 
 [[package]]
 name = "parking"
@@ -1736,9 +1755,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
+checksum = "4dc9e0dc2adc1c69d09143aff38d3d30c5c3f0df0dad82e6d25547af174ebec0"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
@@ -1938,9 +1957,9 @@ dependencies = [
 
 [[package]]
 name = "polling"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "899b00b9c8ab553c743b3e11e87c5c7d423b2a2de229ba95b24a756344748011"
+checksum = "ab4609a838d88b73d8238967b60dd115cc08d38e2bbaf51ee1e4b695f89122e2"
 dependencies = [
  "autocfg",
  "cfg-if 1.0.0",
@@ -1952,9 +1971,9 @@ dependencies = [
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.16"
+version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
 [[package]]
 name = "precomputed-hash"
@@ -1964,9 +1983,9 @@ checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 
 [[package]]
 name = "predicates"
-version = "2.1.1"
+version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5aab5be6e4732b473071984b3164dbbfb7a3674d30ea5ff44410b6bcd960c3c"
+checksum = "ab68289ded120dcbf9d571afcf70163233229052aec9b08ab09532f698d0e1e6"
 dependencies = [
  "difflib",
  "itertools",
@@ -1975,15 +1994,15 @@ dependencies = [
 
 [[package]]
 name = "predicates-core"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da1c2388b1513e1b605fcec39a95e0a9e8ef088f71443ef37099fa9ae6673fcb"
+checksum = "a6e7125585d872860e9955ca571650b27a4979c5823084168c5ed5bbfb016b56"
 
 [[package]]
 name = "predicates-tree"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d86de6de25020a36c6d3643a86d9a6a9f552107c0559c60ea03551b5e16c032"
+checksum = "ad3f7fa8d61e139cbc7c3edfebf3b6678883a53f5ffac65d1259329a93ee43a5"
 dependencies = [
  "predicates-core",
  "termtree",
@@ -2015,9 +2034,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.46"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94e2ef8dbfc347b10c094890f778ee2e36ca9bb4262e86dc99cd217e35f3470b"
+checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
 dependencies = [
  "unicode-ident",
 ]
@@ -2097,7 +2116,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom 0.2.7",
+ "getrandom 0.2.8",
 ]
 
 [[package]]
@@ -2157,16 +2176,16 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
 dependencies = [
- "getrandom 0.2.7",
+ "getrandom 0.2.8",
  "redox_syscall",
  "thiserror",
 ]
 
 [[package]]
 name = "regex"
-version = "1.6.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
+checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2181,9 +2200,9 @@ checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.27"
+version = "0.6.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
+checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
 
 [[package]]
 name = "remove_dir_all"
@@ -2221,14 +2240,15 @@ dependencies = [
 
 [[package]]
 name = "ruff"
-version = "0.0.105"
+version = "0.0.113"
 dependencies = [
  "anyhow",
  "assert_cmd",
  "bincode",
+ "bitflags",
  "cacache",
  "chrono",
- "clap 4.0.15",
+ "clap 4.0.22",
  "clearscreen",
  "colored",
  "common-path",
@@ -2236,12 +2256,13 @@ dependencies = [
  "dirs 4.0.0",
  "fern",
  "filetime",
- "getrandom 0.2.7",
+ "getrandom 0.2.8",
  "glob",
  "insta",
  "itertools",
  "libcst",
  "log",
+ "nohash-hasher",
  "notify",
  "num-bigint",
  "once_cell",
@@ -2257,7 +2278,7 @@ dependencies = [
  "strum",
  "strum_macros",
  "test-case",
- "textwrap 0.15.1",
+ "textwrap",
  "titlecase",
  "toml",
  "update-informer",
@@ -2266,12 +2287,13 @@ dependencies = [
 
 [[package]]
 name = "ruff_dev"
-version = "0.0.105"
+version = "0.0.113"
 dependencies = [
  "anyhow",
- "clap 4.0.15",
+ "clap 4.0.22",
  "codegen",
  "itertools",
+ "libcst",
  "ruff",
  "rustpython-ast",
  "rustpython-common",
@@ -2282,9 +2304,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.20.6"
+version = "0.20.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aab8ee6c7097ed6057f43c187a62418d0c05a4bd5f18b3571db50ee0f9ce033"
+checksum = "539a2bfe908f471bfa933876bd1eb6a19cf2176d375f82ef7f99530a40e48c2c"
 dependencies = [
  "log",
  "ring",
@@ -2295,7 +2317,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "num-bigint",
  "rustpython-common",
@@ -2305,7 +2327,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "ascii",
  "cfg-if 1.0.0",
@@ -2328,11 +2350,11 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "bincode",
  "bitflags",
- "bstr",
+ "bstr 0.2.17",
  "itertools",
  "lz4_flex",
  "num-bigint",
@@ -2345,7 +2367,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "ahash",
  "anyhow",
@@ -2417,18 +2439,18 @@ checksum = "e25dfac463d778e353db5be2449d1cce89bd6fd23c9f1ea21310ce6e5a1b29c4"
 
 [[package]]
 name = "serde"
-version = "1.0.145"
+version = "1.0.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "728eb6351430bccb993660dfffc5a72f91ccc1295abaa8ce19b27ebe4f75568b"
+checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.145"
+version = "1.0.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81fa1584d3d1bcacd84c277a0dfe21f5b0f6accf4a23d04d4c6d61f1af522b4c"
+checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2437,9 +2459,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.86"
+version = "1.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41feea4228a6f1cd09ec7a3593a682276702cd67b5273544757dae23c096f074"
+checksum = "6ce777b7b150d76b9cf60d28b55f5847135a003f7d7350c6be7a773508ce7d45"
 dependencies = [
  "itoa",
  "ryu",
@@ -2634,9 +2656,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.102"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fcd952facd492f9be3ef0d0b7032a6e442ee9b361d4acc2b1d0c4aaa5f613a1"
+checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2702,9 +2724,9 @@ dependencies = [
 
 [[package]]
 name = "termtree"
-version = "0.2.4"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "507e9898683b6c43a9aa55b64259b721b52ba226e0f3779137e50ad114a4c90b"
+checksum = "95059e91184749cb66be6dc994f67f182b6d897cb3df74a5bf66b5e709295fd8"
 
 [[package]]
 name = "test-case"
@@ -2730,21 +2752,15 @@ dependencies = [
 
 [[package]]
 name = "textwrap"
-version = "0.15.1"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "949517c0cf1bf4ee812e2e07e08ab448e3ae0d23472aee8a06c985f0c8815b16"
+checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
 dependencies = [
  "smawk",
  "unicode-linebreak",
  "unicode-width",
 ]
 
-[[package]]
-name = "textwrap"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
-
 [[package]]
 name = "thiserror"
 version = "1.0.37"
@@ -2984,7 +3000,7 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97acb4c28a254fd7a4aeec976c46a7fa404eac4d7c134b30c75144846d7cb8f"
 dependencies = [
- "base64 0.13.0",
+ "base64 0.13.1",
  "chunked_transfer",
  "flate2",
  "log",
@@ -3240,46 +3256,60 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows-sys"
-version = "0.36.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
+checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
 dependencies = [
+ "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
  "windows_i686_gnu",
  "windows_i686_msvc",
  "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
  "windows_x86_64_msvc",
 ]
 
 [[package]]
-name = "windows_aarch64_msvc"
-version = "0.36.1"
+name = "windows_aarch64_gnullvm"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
+checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.36.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
+checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.36.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
+checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.36.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
+checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.36.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
+checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
 
 [[package]]
 name = "ws2_32-sys"

Cargo.toml

@@ -6,15 +6,16 @@ members = [
 
 [package]
 name = "ruff"
-version = "0.0.105"
+version = "0.0.113"
 edition = "2021"
 
 [lib]
 name = "ruff"
 
 [dependencies]
-anyhow = { version = "1.0.60" }
+anyhow = { version = "1.0.66" }
 bincode = { version = "1.3.3" }
+bitflags = { version = "1.3.2" }
 chrono = { version = "0.4.21" }
 clap = { version = "4.0.1", features = ["derive"] }
 colored = { version = "2.0.0" }
@@ -24,26 +25,27 @@ fern = { version = "0.6.1" }
 filetime = { version = "0.2.17" }
 glob = { version = "0.3.0" }
 itertools = { version = "0.10.5" }
-libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "32a044c127668df44582f85699358e67803b0d73" }
+libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "a13ec97dd4eb925bde4d426c6e422582793b260c" }
 log = { version = "0.4.17" }
+nohash-hasher = { version = "0.2.0" }
 notify = { version = "4.0.17" }
 num-bigint = { version = "0.4.3" }
-once_cell = { version = "1.13.1" }
+once_cell = { version = "1.16.0" }
 path-absolutize = { version = "3.0.14", features = ["once_cell_cache", "use_unix_paths_on_wasm"] }
 rayon = { version = "1.5.3" }
 regex = { version = "1.6.0" }
-ropey = { version = "1.5.0" }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
-serde = { version = "1.0.143", features = ["derive"] }
-serde_json = { version = "1.0.83" }
+ropey = { version = "1.5.0", features = ["cr_lines", "simd"], default-features = false }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+serde = { version = "1.0.147", features = ["derive"] }
+serde_json = { version = "1.0.87" }
 strum = { version = "0.24.1", features = ["strum_macros"] }
 strum_macros = { version = "0.24.3" }
-textwrap = { version = "0.15.1" }
+textwrap = { version = "0.16.0" }
 titlecase = { version = "2.2.1" }
 toml = { version = "0.5.9" }
-update-informer = { version = "0.5.0", default_features = false, features = ["pypi"], optional = true }
+update-informer = { version = "0.5.0", default-features = false, features = ["pypi"], optional = true }
 walkdir = { version = "2.3.2" }
 
 [target.'cfg(not(target_family = "wasm"))'.dependencies]

README.md

@@ -15,21 +15,25 @@ An extremely fast Python linter, written in Rust.
   <i>Linting the CPython codebase from scratch.</i>
 </p>
 
-- ⚡️ 10-100x faster than existing linters
-- 🐍 Installable via `pip`
-- 🤝 Python 3.10 compatibility
-- 🛠️ `pyproject.toml` support
-- 📦 [ESLint](https://eslint.org/docs/latest/user-guide/command-line-interface#caching)-inspired cache support
-- 🔧 [ESLint](https://eslint.org/docs/latest/user-guide/command-line-interface#--fix)-inspired autofix support (e.g., automatically remove unused imports)
-- 👀 [TypeScript](https://www.typescriptlang.org/docs/handbook/configuring-watch.html)-inspired `--watch` support, for continuous file monitoring
-- ⚖️ [Near-parity](#how-does-ruff-compare-to-flake8) with the built-in Flake8 rule set
-- 🔌 Native re-implementations of popular Flake8 plugins, like [`flake8-docstrings`](https://pypi.org/project/flake8-docstrings/) ([`pydocstyle`](https://pypi.org/project/pydocstyle/))
+- ⚡️  10-100x faster than existing linters
+- 🐍  Installable via `pip`
+- 🤝  Python 3.10 compatibility
+- 🛠️  `pyproject.toml` support
+- 📦  Built-in caching, to avoid re-analyzing unchanged files
+- 🔧  `--fix` support, for automatic error correction (e.g., automatically remove unused imports)
+- 👀  `--watch` support, for continuous file monitoring
+- ⚖️  [Near-parity](#how-does-ruff-compare-to-flake8) with the built-in Flake8 rule set
+- 🔌  Native re-implementations of popular Flake8 plugins, like [`flake8-docstrings`](https://pypi.org/project/flake8-docstrings/) ([`pydocstyle`](https://pypi.org/project/pydocstyle/))
 
 Ruff aims to be orders of magnitude faster than alternative tools while integrating more
 functionality behind a single, common interface. Ruff can be used to replace Flake8 (plus a variety
-of plugins), [`pydocstyle`](https://pypi.org/project/pydocstyle/), [`yesqa`](https://github.com/asottile/yesqa),
-and even a subset of [`pyupgrade`](https://pypi.org/project/pyupgrade/) and [`autoflake`](https://pypi.org/project/autoflake/)
-all while executing tens or hundreds of times faster than any individual tool.
+of plugins), [`isort`](https://pypi.org/project/isort/), [`pydocstyle`](https://pypi.org/project/pydocstyle/),
+[`yesqa`](https://github.com/asottile/yesqa), and even a subset of [`pyupgrade`](https://pypi.org/project/pyupgrade/)
+and [`autoflake`](https://pypi.org/project/autoflake/) all while executing tens or hundreds of times
+faster than any individual tool.
+
+(Coming from Flake8? Try [`flake8-to-ruff`](https://pypi.org/project/flake8-to-ruff/) to
+automatically convert your existing configuration.)
 
 Ruff is actively developed and used in major open-source projects
 like [Zulip](https://github.com/zulip/zulip), [pydantic](https://github.com/pydantic/pydantic),
@@ -53,8 +57,9 @@ Read the [launch blog post](https://notes.crmarsh.com/python-tooling-could-be-mu
    9. [flake8-print](#flake8-print)
    10. [flake8-quotes](#flake8-quotes)
    11. [flake8-annotations](#flake8-annotations)
-   12. [Ruff-specific rules](#ruff-specific-rules)
-   13. [Meta rules](#meta-rules)
+   12. [flake8-2020](#flake8-2020)
+   13. [Ruff-specific rules](#ruff-specific-rules)
+   14. [Meta rules](#meta-rules)
 5. [Editor Integrations](#editor-integrations)
 6. [FAQ](#faq)
 7. [Development](#development)
@@ -94,7 +99,7 @@ Ruff also works with [pre-commit](https://pre-commit.com):
 ```yaml
 repos:
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.105
+    rev: v0.0.113
     hooks:
       - id: ruff
 ```
@@ -200,7 +205,7 @@ Options:
           Exit with status code "0", even upon detecting errors
   -w, --watch
           Run in watch mode by re-running whenever files change
-  -f, --fix
+      --fix
           Attempt to automatically fix lint errors
   -n, --no-cache
           Disable cache reads
@@ -282,16 +287,16 @@ Ruff supports several workflows to aid in `noqa` management.
 
 First, Ruff provides a special error code, `M001`, to enforce that your `noqa` directives are
 "valid", in that the errors they _say_ they ignore are actually being triggered on that line (and
-thus suppressed). **You can run `ruff /path/to/file.py --extend-select M001` to flag unused `noqa`
-directives.**
+thus suppressed). You can run `ruff /path/to/file.py --extend-select M001` to flag unused `noqa`
+directives.
 
 Second, Ruff can _automatically remove_ unused `noqa` directives via its autofix functionality.
-**You can run `ruff /path/to/file.py --extend-select M001 --fix` to automatically remove unused
-`noqa` directives.**
+You can run `ruff /path/to/file.py --extend-select M001 --fix` to automatically remove unused
+`noqa` directives.
 
 Third, Ruff can _automatically add_ `noqa` directives to all failing lines. This is useful when
-migrating a new codebase to Ruff. **You can run `ruff /path/to/file.py --add-noqa` to automatically
-add `noqa` directives to all failing lines, with the appropriate error codes.**
+migrating a new codebase to Ruff. You can run `ruff /path/to/file.py --add-noqa` to automatically
+add `noqa` directives to all failing lines, with the appropriate error codes.
 
 ## Supported Rules
 
@@ -362,6 +367,14 @@ For more, see [pycodestyle](https://pypi.org/project/pycodestyle/2.9.1/) on PyPI
 | W292 | NoNewLineAtEndOfFile | No newline at end of file |  |
 | W605 | InvalidEscapeSequence | Invalid escape sequence: '\c' |  |
 
+### isort
+
+For more, see [isort](https://pypi.org/project/isort/5.10.1/) on PyPI.
+
+| Code | Name | Message | Fix |
+| ---- | ---- | ------- | --- |
+| I001 | UnsortedImports | Import block is un-sorted or un-formatted | 🛠 |
+
 ### pydocstyle
 
 For more, see [pydocstyle](https://pypi.org/project/pydocstyle/6.1.1/) on PyPI.
@@ -428,6 +441,8 @@ For more, see [pyupgrade](https://pypi.org/project/pyupgrade/3.2.0/) on PyPI.
 | U007 | UsePEP604Annotation | Use `X \| Y` for type annotations | 🛠 |
 | U008 | SuperCallWithParameters | Use `super()` instead of `super(__class__, self)` | 🛠 |
 | U009 | PEP3120UnnecessaryCodingComment | utf-8 encoding declaration is unnecessary | 🛠 |
+| U010 | UnnecessaryFutureImport | Unnessary __future__ import `...` for target Python version |  |
+| U011 | UnnecessaryLRUCacheParams | Unnessary parameters to functools.lru_cache | 🛠 |
 
 ### pep8-naming
 
@@ -461,7 +476,7 @@ For more, see [flake8-comprehensions](https://pypi.org/project/flake8-comprehens
 | C401 | UnnecessaryGeneratorSet | Unnecessary generator (rewrite as a `set` comprehension) | 🛠 |
 | C402 | UnnecessaryGeneratorDict | Unnecessary generator (rewrite as a `dict` comprehension) | 🛠 |
 | C403 | UnnecessaryListComprehensionSet | Unnecessary `list` comprehension (rewrite as a `set` comprehension) | 🛠 |
-| C404 | UnnecessaryListComprehensionDict | Unnecessary `list` comprehension (rewrite as a `dict` comprehension) |  |
+| C404 | UnnecessaryListComprehensionDict | Unnecessary `list` comprehension (rewrite as a `dict` comprehension) | 🛠 |
 | C405 | UnnecessaryLiteralSet | Unnecessary `(list\|tuple)` literal (rewrite as a `set` literal) | 🛠 |
 | C406 | UnnecessaryLiteralDict | Unnecessary `(list\|tuple)` literal (rewrite as a `dict` literal) | 🛠 |
 | C408 | UnnecessaryCollectionCall | Unnecessary `(dict\|list\|tuple)` call (rewrite as a literal) | 🛠 |
@@ -482,9 +497,13 @@ For more, see [flake8-bugbear](https://pypi.org/project/flake8-bugbear/22.10.27/
 | ---- | ---- | ------- | --- |
 | B002 | UnaryPrefixIncrement | Python does not support the unary prefix increment. |  |
 | B003 | AssignmentToOsEnviron | Assigning to `os.environ` doesn't clear the environment. |  |
+| B004 | UnreliableCallableCheck |  Using `hasattr(x, '__call__')` to test if x is callable is unreliable. Use `callable(x)` for consistent results. |  |
+| B005 | StripWithMultiCharacters | Using `.strip()` with multi-character strings is misleading the reader. |  |
 | B006 | MutableArgumentDefault | Do not use mutable data structures for argument defaults. |  |
 | B007 | UnusedLoopControlVariable | Loop control variable `i` not used within the loop body. | 🛠 |
 | B008 | FunctionCallArgumentDefault | Do not perform function calls in argument defaults. |  |
+| B009 | GetAttrWithConstant | Do not call `getattr` with a constant attribute value, it is not any safer than normal property access. | 🛠 |
+| B010 | SetAttrWithConstant | Do not call `setattr` with a constant attribute value, it is not any safer than normal property access. |  |
 | B011 | DoNotAssertFalse | Do not `assert False` (`python -O` removes these calls), raise `AssertionError()` | 🛠 |
 | B013 | RedundantTupleInExceptionHandler | A length-one tuple literal is redundant. Write `except ValueError:` instead of `except (ValueError,):`. |  |
 | B014 | DuplicateHandlerException | Exception handler with duplicate exception: `ValueError` | 🛠 |
@@ -493,6 +512,7 @@ For more, see [flake8-bugbear](https://pypi.org/project/flake8-bugbear/22.10.27/
 | B017 | NoAssertRaisesException | `assertRaises(Exception):` should be considered evil. |  |
 | B018 | UselessExpression | Found useless expression. Either assign it to a variable or remove it. |  |
 | B025 | DuplicateTryBlockException | try-except block with duplicate exception `Exception` |  |
+| B026 | StarArgUnpackingAfterKeywordArg | Star-arg unpacking after a keyword argument is strongly discouraged. |  |
 
 ### flake8-builtins
 
@@ -530,16 +550,34 @@ For more, see [flake8-annotations](https://pypi.org/project/flake8-annotations/2
 
 | Code | Name | Message | Fix |
 | ---- | ---- | ------- | --- |
-| ANN001 | MissingTypeFunctionArgument | Missing type annotation for function argument |  |
-| ANN002 | MissingTypeArgs | Missing type annotation for `*args` |  |
-| ANN003 | MissingTypeKwargs | Missing type annotation for `**kwargs` |  |
-| ANN101 | MissingTypeSelf | Missing type annotation for `self` in method |  |
-| ANN102 | MissingTypeCls | Missing type annotation for `cls` in classmethod |  |
-| ANN201 | MissingReturnTypePublicFunction | Missing return type annotation for public function |  |
-| ANN202 | MissingReturnTypePrivateFunction | Missing return type annotation for private function |  |
-| ANN204 | MissingReturnTypeMagicMethod | Missing return type annotation for magic method |  |
-| ANN205 | MissingReturnTypeStaticMethod | Missing return type annotation for staticmethod |  |
-| ANN206 | MissingReturnTypeClassMethod | Missing return type annotation for classmethod |  |
+| ANN001 | MissingTypeFunctionArgument | Missing type annotation for function argument `...` |  |
+| ANN002 | MissingTypeArgs | Missing type annotation for `*...` |  |
+| ANN003 | MissingTypeKwargs | Missing type annotation for `**...` |  |
+| ANN101 | MissingTypeSelf | Missing type annotation for `...` in method |  |
+| ANN102 | MissingTypeCls | Missing type annotation for `...` in classmethod |  |
+| ANN201 | MissingReturnTypePublicFunction | Missing return type annotation for public function `...` |  |
+| ANN202 | MissingReturnTypePrivateFunction | Missing return type annotation for private function `...` |  |
+| ANN204 | MissingReturnTypeMagicMethod | Missing return type annotation for magic method `...` |  |
+| ANN205 | MissingReturnTypeStaticMethod | Missing return type annotation for staticmethod `...` |  |
+| ANN206 | MissingReturnTypeClassMethod | Missing return type annotation for classmethod `...` |  |
+| ANN401 | DynamicallyTypedExpression | Dynamically typed expressions (typing.Any) are disallowed in `...` |  |
+
+### flake8-2020
+
+For more, see [flake8-2020](https://pypi.org/project/flake8-2020/1.7.0/) on PyPI.
+
+| Code | Name | Message | Fix |
+| ---- | ---- | ------- | --- |
+| YTT101 | SysVersionSlice3Referenced | `sys.version[:3]` referenced (python3.10), use `sys.version_info` |  |
+| YTT102 | SysVersion2Referenced | `sys.version[2]` referenced (python3.10), use `sys.version_info` |  |
+| YTT103 | SysVersionCmpStr3 | `sys.version` compared to string (python3.10), use `sys.version_info` |  |
+| YTT201 | SysVersionInfo0Eq3Referenced | `sys.version_info[0] == 3` referenced (python4), use `>=` |  |
+| YTT202 | SixPY3Referenced | `six.PY3` referenced (python4), use `not six.PY2` |  |
+| YTT203 | SysVersionInfo1CmpInt | `sys.version_info[1]` compared to integer (python4), compare `sys.version_info` to tuple |  |
+| YTT204 | SysVersionInfoMinorCmpInt | `sys.version_info.minor` compared to integer (python4), compare `sys.version_info` to tuple |  |
+| YTT301 | SysVersion0Referenced | `sys.version[0]` referenced (python10), use `sys.version_info` |  |
+| YTT302 | SysVersionCmpStr10 | `sys.version` compared to string (python10), use `sys.version_info` |  |
+| YTT303 | SysVersionSlice1Referenced | `sys.version[:1]` referenced (python10), use `sys.version_info` |  |
 
 ### Ruff-specific rules
 
@@ -547,6 +585,7 @@ For more, see [flake8-annotations](https://pypi.org/project/flake8-annotations/2
 | ---- | ---- | ------- | --- |
 | RUF001 | AmbiguousUnicodeCharacterString | String contains ambiguous unicode character '𝐁' (did you mean 'B'?) | 🛠 |
 | RUF002 | AmbiguousUnicodeCharacterDocstring | Docstring contains ambiguous unicode character '𝐁' (did you mean 'B'?) | 🛠 |
+| RUF003 | AmbiguousUnicodeCharacterComment | Comment contains ambiguous unicode character '𝐁' (did you mean 'B'?) |  |
 
 ### Meta rules
 
@@ -558,6 +597,10 @@ For more, see [flake8-annotations](https://pypi.org/project/flake8-annotations/2
 
 ## Editor Integrations
 
+### VS Code (Official)
+
+Download the [Ruff VS Code extension](https://marketplace.visualstudio.com/items?itemName=charliermarsh.ruff).
+
 ### PyCharm
 
 Ruff can be installed as an [External Tool](https://www.jetbrains.com/help/pycharm/configuring-third-party-tools.html)
@@ -570,6 +613,19 @@ Ruff should then appear as a runnable action:
 
 ![Ruff as a runnable action](https://user-images.githubusercontent.com/1309177/193156026-732b0aaf-3dd9-4549-9b4d-2de6d2168a33.png)
 
+### Vim & Neovim (Unofficial)
+
+Ruff is available as part of the [coc-pyright](https://github.com/fannheyward/coc-pyright) extension
+for coc.nvim.
+
+Ruff can also be integrated via [efm](https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#efm)
+in just a [few lines](https://github.com/JafarAbdi/myconfigs/blob/6f0b6b2450e92ec8fc50422928cd22005b919110/efm-langserver/config.yaml#L14-L20).
+
+### Language Server Protocol (Unofficial)
+
+[`ruffd`](https://github.com/Seamooo/ruffd) is a Rust-based language server for Ruff that implements
+the Language Server Protocol (LSP).
+
 ### GitHub Actions
 
 GitHub Actions has everything you need to run Ruff out-of-the-box:
@@ -606,6 +662,9 @@ stylistic lint rules that are obviated by autoformatting.
 
 ### How does Ruff compare to Flake8?
 
+(Coming from Flake8? Try [`flake8-to-ruff`](https://pypi.org/project/flake8-to-ruff/) to
+automatically convert your existing configuration.)
+
 Ruff can be used as a (near) drop-in replacement for Flake8 when used (1) without or with a small
 number of plugins, (2) alongside Black, and (3) on Python 3 code.
 
@@ -625,8 +684,9 @@ including:
 - [`flake8-quotes`](https://pypi.org/project/flake8-quotes/)
 - [`flake8-annotations`](https://pypi.org/project/flake8-annotations/)
 - [`flake8-comprehensions`](https://pypi.org/project/flake8-comprehensions/)
-- [`flake8-bugbear`](https://pypi.org/project/flake8-bugbear/) (15/32)
-- [`pyupgrade`](https://pypi.org/project/pyupgrade/) (11/34)
+- [`flake8-bugbear`](https://pypi.org/project/flake8-bugbear/) (20/32)
+- [`flake8-2020`](https://pypi.org/project/flake8-2020/)
+- [`pyupgrade`](https://pypi.org/project/pyupgrade/) (14/34)
 - [`autoflake`](https://pypi.org/project/autoflake/) (1/7)
 
 Beyond rule-set parity, Ruff suffers from the following limitations vis-à-vis Flake8:
@@ -648,10 +708,11 @@ Today, Ruff can be used to replace Flake8 when used with any of the following pl
 - [`flake8-quotes`](https://pypi.org/project/flake8-quotes/)
 - [`flake8-annotations`](https://pypi.org/project/flake8-annotations/)
 - [`flake8-comprehensions`](https://pypi.org/project/flake8-comprehensions/)
-- [`flake8-bugbear`](https://pypi.org/project/flake8-bugbear/) (15/32)
+- [`flake8-bugbear`](https://pypi.org/project/flake8-bugbear/) (20/32)
+- [`flake8-2020`](https://pypi.org/project/flake8-2020/)
 
-Ruff also implements the functionality that you get from [`yesqa`](https://github.com/asottile/yesqa),
-and a subset of the rules implemented in [`pyupgrade`](https://pypi.org/project/pyupgrade/) (11/34).
+Ruff can also replace [`isort`](https://pypi.org/project/isort/), [`yesqa`](https://github.com/asottile/yesqa),
+and a subset of the rules implemented in [`pyupgrade`](https://pypi.org/project/pyupgrade/) (14/34).
 
 If you're looking to use Ruff, but rely on an unsupported Flake8 plugin, free to file an Issue.
 
@@ -671,6 +732,34 @@ on Rust at all.
 Ruff does not yet support third-party plugins, though a plugin system is within-scope for the
 project. See [#283](https://github.com/charliermarsh/ruff/issues/283) for more.
 
+### How does Ruff's import sorting compare to [`isort`](https://pypi.org/project/isort/)?
+
+Ruff's import sorting is intended to be equivalent to `isort` when used `profile = "black"`, and a
+few other settings (`combine_as_imports = true`, `order_by_type = false`, and
+`case_sensitive` = true`).
+
+Like `isort`, Ruff's import sorting is compatible with Black.
+
+Ruff is less configurable than `isort`, but supports the `known-first-party`, `known-third-party`,
+`extra-standard-library`, and `src` settings, like so:
+
+```toml
+[tool.ruff]
+select = [
+    # Pyflakes
+    "F",
+    # Pycodestyle
+    "E",
+    "W",
+    # isort
+    "I"
+]
+src = ["src", "tests"]
+
+[tool.ruff.isort]
+known-first-party = ["my_module1", "my_module2"]
+```
+
 ### Does Ruff support NumPy- or Google-style docstrings?
 
 Yes! To enable a specific docstring convention, start by enabling all `pydocstyle` error codes, and

flake8_to_ruff/Cargo.lock

@@ -771,7 +771,7 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
 
 [[package]]
 name = "flake8_to_ruff"
-version = "0.0.105"
+version = "0.0.113"
 dependencies = [
  "anyhow",
  "clap",
@@ -1265,7 +1265,7 @@ checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 [[package]]
 name = "libcst"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=32a044c127668df44582f85699358e67803b0d73#32a044c127668df44582f85699358e67803b0d73"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
  "chic",
  "itertools",
@@ -1280,7 +1280,7 @@ dependencies = [
 [[package]]
 name = "libcst_derive"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=32a044c127668df44582f85699358e67803b0d73#32a044c127668df44582f85699358e67803b0d73"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
  "quote",
  "syn",
@@ -1505,7 +1505,7 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.13.1"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
@@ -1975,7 +1975,7 @@ dependencies = [
 
 [[package]]
 name = "ruff"
-version = "0.0.105"
+version = "0.0.113"
 dependencies = [
  "anyhow",
  "bincode",
@@ -2028,7 +2028,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "num-bigint",
  "rustpython-common",
@@ -2038,7 +2038,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "ascii",
  "cfg-if 1.0.0",
@@ -2061,7 +2061,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "bincode",
  "bitflags",
@@ -2078,7 +2078,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=77b821a1941019fe34f73ce17cea013ae1b98fd0#77b821a1941019fe34f73ce17cea013ae1b98fd0"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
  "ahash",
  "anyhow",

flake8_to_ruff/Cargo.toml

@@ -1,20 +1,20 @@
 [package]
 name = "flake8-to-ruff"
-version = "0.0.105-dev.0"
+version = "0.0.113-dev.0"
 edition = "2021"
 
 [lib]
 name = "flake8_to_ruff"
 
 [dependencies]
-anyhow = { version = "1.0.60" }
+anyhow = { version = "1.0.66" }
 clap = { version = "4.0.1", features = ["derive"] }
 configparser = { version = "3.0.2" }
-once_cell = { version = "1.13.1" }
+once_cell = { version = "1.16.0" }
 regex = { version = "1.6.0" }
 ruff = { path = "..", default-features = false }
-serde = { version = "1.0.143", features = ["derive"] }
-serde_json = { version = "1.0.83" }
+serde = { version = "1.0.147", features = ["derive"] }
+serde_json = { version = "1.0.87" }
 toml = { version = "0.5.9" }
 
 [dev-dependencies]

flake8_to_ruff/src/converter.rs

@@ -1,6 +1,7 @@
 use std::collections::{BTreeSet, HashMap};
 
 use anyhow::Result;
+use ruff::checks_gen::CheckCodePrefix;
 use ruff::flake8_quotes::settings::Quote;
 use ruff::settings::options::Options;
 use ruff::settings::pyproject::Pyproject;
@@ -13,6 +14,29 @@ pub fn convert(
     flake8: &HashMap<String, Option<String>>,
     plugins: Option<Vec<Plugin>>,
 ) -> Result<Pyproject> {
+    // Extract all referenced check code prefixes, to power plugin inference.
+    let mut referenced_codes: BTreeSet<CheckCodePrefix> = Default::default();
+    for (key, value) in flake8 {
+        if let Some(value) = value {
+            match key.as_str() {
+                "select" | "ignore" | "extend-select" | "extend_select" | "extend-ignore"
+                | "extend_ignore" => {
+                    referenced_codes.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "per-file-ignores" | "per_file_ignores" => {
+                    if let Ok(per_file_ignores) =
+                        parser::parse_files_to_codes_mapping(value.as_ref())
+                    {
+                        for (_, codes) in parser::collect_per_file_ignores(per_file_ignores) {
+                            referenced_codes.extend(codes);
+                        }
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
     // Check if the user has specified a `select`. If not, we'll add our own
     // default `select`, and populate it based on user plugins.
     let mut select = flake8
@@ -25,7 +49,12 @@ pub fn convert(
         .unwrap_or_else(|| {
             plugin::resolve_select(
                 flake8,
-                &plugins.unwrap_or_else(|| plugin::infer_plugins(flake8)),
+                &plugins.unwrap_or_else(|| {
+                    plugin::infer_plugins_from_options(flake8)
+                        .into_iter()
+                        .chain(plugin::infer_plugins_from_codes(&referenced_codes))
+                        .collect()
+                }),
             )
         });
     let mut ignore = flake8
@@ -52,6 +81,7 @@ pub fn convert(
                 },
                 "select" => {
                     // No-op (handled above).
+                    select.extend(parser::parse_prefix_codes(value.as_ref()));
                 }
                 "ignore" => {
                     // No-op (handled above).
@@ -98,6 +128,12 @@ pub fn convert(
                         Err(e) => eprintln!("Unable to parse '{key}' property: {e}"),
                     }
                 }
+                "allow-star-arg-any" | "allow_star_arg_any" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.allow_star_arg_any = Some(bool),
+                        Err(e) => eprintln!("Unable to parse '{key}' property: {e}"),
+                    }
+                }
                 // flake8-quotes
                 "quotes" | "inline-quotes" | "inline_quotes" => match value.trim() {
                     "'" | "single" => flake8_quotes.inline_quotes = Some(Quote::Single),
@@ -172,6 +208,8 @@ mod tests {
         let actual = convert(&HashMap::from([]), None)?;
         let expected = Pyproject::new(Options {
             line_length: None,
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -187,6 +225,7 @@ mod tests {
             target_version: None,
             flake8_annotations: None,
             flake8_quotes: None,
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -202,6 +241,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: Some(100),
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -217,6 +258,7 @@ mod tests {
             target_version: None,
             flake8_annotations: None,
             flake8_quotes: None,
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -232,6 +274,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: Some(100),
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -247,6 +291,7 @@ mod tests {
             target_version: None,
             flake8_annotations: None,
             flake8_quotes: None,
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -262,6 +307,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: None,
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -277,6 +324,7 @@ mod tests {
             target_version: None,
             flake8_annotations: None,
             flake8_quotes: None,
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -292,6 +340,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: None,
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -312,6 +362,7 @@ mod tests {
                 docstring_quotes: None,
                 avoid_escape: None,
             }),
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -330,6 +381,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: None,
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -380,6 +433,7 @@ mod tests {
             target_version: None,
             flake8_annotations: None,
             flake8_quotes: None,
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);
@@ -395,6 +449,8 @@ mod tests {
         )?;
         let expected = Pyproject::new(Options {
             line_length: None,
+            src: None,
+            fix: None,
             exclude: None,
             extend_exclude: None,
             select: Some(vec![
@@ -416,6 +472,7 @@ mod tests {
                 docstring_quotes: None,
                 avoid_escape: None,
             }),
+            isort: None,
             pep8_naming: None,
         });
         assert_eq!(actual, expected);

flake8_to_ruff/src/plugin.rs

@@ -37,6 +37,20 @@ impl FromStr for Plugin {
 }
 
 impl Plugin {
+    pub fn default(&self) -> CheckCodePrefix {
+        match self {
+            Plugin::Flake8Bugbear => CheckCodePrefix::B,
+            Plugin::Flake8Builtins => CheckCodePrefix::A,
+            Plugin::Flake8Comprehensions => CheckCodePrefix::C,
+            Plugin::Flake8Docstrings => CheckCodePrefix::D,
+            Plugin::Flake8Print => CheckCodePrefix::T,
+            Plugin::Flake8Quotes => CheckCodePrefix::Q,
+            Plugin::Flake8Annotations => CheckCodePrefix::ANN,
+            Plugin::PEP8Naming => CheckCodePrefix::N,
+            Plugin::Pyupgrade => CheckCodePrefix::U,
+        }
+    }
+
     pub fn select(&self, flake8: &HashMap<String, Option<String>>) -> Vec<CheckCodePrefix> {
         match self {
             Plugin::Flake8Bugbear => vec![CheckCodePrefix::B],
@@ -239,8 +253,11 @@ impl DocstringConvention {
     }
 }
 
-/// Infer the enabled plugins based on user-provided settings.
-pub fn infer_plugins(flake8: &HashMap<String, Option<String>>) -> Vec<Plugin> {
+/// Infer the enabled plugins based on user-provided options.
+///
+/// For example, if the user specified a `mypy-init-return` setting, we should
+/// infer that `flake8-annotations` is active.
+pub fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> Vec<Plugin> {
     let mut plugins = BTreeSet::new();
     for key in flake8.keys() {
         match key.as_str() {
@@ -306,6 +323,38 @@ pub fn infer_plugins(flake8: &HashMap<String, Option<String>>) -> Vec<Plugin> {
     Vec::from_iter(plugins)
 }
 
+/// Infer the enabled plugins based on the referenced prefixes.
+///
+/// For example, if the user ignores `ANN101`, we should infer that
+/// `flake8-annotations` is active.
+pub fn infer_plugins_from_codes(codes: &BTreeSet<CheckCodePrefix>) -> Vec<Plugin> {
+    [
+        Plugin::Flake8Bugbear,
+        Plugin::Flake8Builtins,
+        Plugin::Flake8Comprehensions,
+        Plugin::Flake8Docstrings,
+        Plugin::Flake8Print,
+        Plugin::Flake8Quotes,
+        Plugin::Flake8Annotations,
+        Plugin::PEP8Naming,
+        Plugin::Pyupgrade,
+    ]
+    .into_iter()
+    .filter(|plugin| {
+        for prefix in codes {
+            if prefix
+                .codes()
+                .iter()
+                .any(|code| plugin.default().codes().contains(code))
+            {
+                return true;
+            }
+        }
+        false
+    })
+    .collect()
+}
+
 /// Resolve the set of enabled `CheckCodePrefix` values for the given plugins.
 pub fn resolve_select(
     flake8: &HashMap<String, Option<String>>,
@@ -316,9 +365,7 @@ pub fn resolve_select(
 
     // Add prefix codes for every plugin.
     for plugin in plugins {
-        for prefix in plugin.select(flake8) {
-            select.insert(prefix);
-        }
+        select.extend(plugin.select(flake8));
     }
 
     select
@@ -328,18 +375,18 @@ pub fn resolve_select(
 mod tests {
     use std::collections::HashMap;
 
-    use crate::plugin::{infer_plugins, Plugin};
+    use crate::plugin::{infer_plugins_from_options, Plugin};
 
     #[test]
     fn it_infers_plugins() {
-        let actual = infer_plugins(&HashMap::from([(
+        let actual = infer_plugins_from_options(&HashMap::from([(
             "inline-quotes".to_string(),
             Some("single".to_string()),
         )]));
         let expected = vec![Plugin::Flake8Quotes];
         assert_eq!(actual, expected);
 
-        let actual = infer_plugins(&HashMap::from([(
+        let actual = infer_plugins_from_options(&HashMap::from([(
             "staticmethod-decorators".to_string(),
             Some("[]".to_string()),
         )]));

pyproject.toml

@@ -32,3 +32,7 @@ build-backend = "maturin"
 bindings = "bin"
 sdist-include = ["Cargo.lock"]
 strip = true
+
+[tool.isort]
+profile = "black"
+known_third_party = ["fastapi", "pydantic", "starlette"]

resources/test/fixtures/B004.py

@@ -0,0 +1,12 @@
+def this_is_a_bug():
+    o = object()
+    if hasattr(o, "__call__"):
+        print("Ooh, callable! Or is it?")
+    if getattr(o, "__call__", False):
+        print("Ooh, callable! Or is it?")
+
+
+def this_is_fine():
+    o = object()
+    if callable(o):
+        print("Ooh, this is actually callable.")

resources/test/fixtures/B005.py

@@ -0,0 +1,26 @@
+s = "qwe"
+s.strip(s)  # no warning
+s.strip("we")  # no warning
+s.strip(".facebook.com")  # warning
+s.strip("e")  # no warning
+s.strip("\n\t ")  # no warning
+s.strip(r"\n\t ")  # warning
+s.lstrip(s)  # no warning
+s.lstrip("we")  # no warning
+s.lstrip(".facebook.com")  # warning
+s.lstrip("e")  # no warning
+s.lstrip("\n\t ")  # no warning
+s.lstrip(r"\n\t ")  # warning
+s.rstrip(s)  # no warning
+s.rstrip("we")  # warning
+s.rstrip(".facebook.com")  # warning
+s.rstrip("e")  # no warning
+s.rstrip("\n\t ")  # no warning
+s.rstrip(r"\n\t ")  # warning
+
+from somewhere import other_type, strip
+
+strip("we")  # no warning
+other_type().lstrip()  # no warning
+other_type().rstrip(["a", "b", "c"])  # no warning
+other_type().strip("a", "b")  # no warning

resources/test/fixtures/B009_B010.py

@@ -0,0 +1,36 @@
+"""
+Should emit:
+B009 - Line 18, 19, 20, 21, 22
+B010 - Line 33, 34, 35, 36
+"""
+
+# Valid getattr usage
+getattr(foo, bar)
+getattr(foo, "bar", None)
+getattr(foo, "bar{foo}".format(foo="a"), None)
+getattr(foo, "bar{foo}".format(foo="a"))
+getattr(foo, bar, None)
+getattr(foo, "123abc")
+getattr(foo, r"123\abc")
+getattr(foo, "except")
+
+# Invalid usage
+getattr(foo, "bar")
+getattr(foo, "_123abc")
+getattr(foo, "abc123")
+getattr(foo, r"abc123")
+_ = lambda x: getattr(x, "bar")
+
+# Valid setattr usage
+setattr(foo, bar, None)
+setattr(foo, "bar{foo}".format(foo="a"), None)
+setattr(foo, "123abc", None)
+setattr(foo, r"123\abc", None)
+setattr(foo, "except", None)
+_ = lambda x: setattr(x, "bar", 1)
+
+# Invalid usage
+setattr(foo, "bar", None)
+setattr(foo, "_123abc", None)
+setattr(foo, "abc123", None)
+setattr(foo, r"abc123", None)

resources/test/fixtures/B026.py

@@ -0,0 +1,21 @@
+"""
+Should emit:
+B026 - on lines 16, 17, 18, 19, 20, 21
+"""
+
+
+def foo(bar, baz, bam):
+    print(bar, baz, bam)
+
+
+bar_baz = ["bar", "baz"]
+
+foo("bar", "baz", bam="bam")
+foo("bar", baz="baz", bam="bam")
+foo(bar="bar", baz="baz", bam="bam")
+foo(bam="bam", *["bar", "baz"])
+foo(bam="bam", *bar_baz)
+foo(baz="baz", bam="bam", *["bar"])
+foo(bar="bar", baz="baz", bam="bam", *[])
+foo(bam="bam", *["bar"], *["baz"])
+foo(*["bar"], bam="bam", *["baz"])

resources/test/fixtures/C413.py

@@ -1,4 +1,6 @@
 x = [2, 3, 1]
+list(x)
 list(sorted(x))
 reversed(sorted(x))
+reversed(sorted(x, key=lambda e: e))
 reversed(sorted(x, reverse=True))

resources/test/fixtures/RUF001.py

@@ -2,5 +2,6 @@ x = "𝐁ad string"
 
 
 def f():
-    """Here's a comment with an unusual parenthesis: ）"""
+    """Here's a docstring with an unusual parenthesis: ）"""
+    # And here's a comment with an unusual punctuation mark: ᜵
     ...

resources/test/fixtures/RUF002.py

@@ -2,5 +2,6 @@ x = "𝐁ad string"
 
 
 def f():
-    """Here's a comment with an unusual parenthesis: ）"""
+    """Here's a docstring with an unusual parenthesis: ）"""
+    # And here's a comment with an unusual punctuation mark: ᜵
     ...

resources/test/fixtures/RUF003.py

@@ -0,0 +1,7 @@
+x = "𝐁ad string"
+
+
+def f():
+    """Here's a docstring with an unusual parenthesis: ）"""
+    # And here's a comment with an unusual punctuation mark: ᜵
+    ...

resources/test/fixtures/U010.py

@@ -0,0 +1,5 @@
+from __future__ import annotations, nested_scopes, generators
+
+from __future__ import absolute_import, division
+
+from __future__ import generator_stop

resources/test/fixtures/U011_0.py

@@ -0,0 +1,103 @@
+import functools
+from functools import lru_cache
+
+
+@lru_cache()
+def fixme1():
+    pass
+
+
+@other_deco_after
+@functools.lru_cache()
+def fixme2():
+    pass
+
+
+@lru_cache(maxsize=None)
+def fixme3():
+    pass
+
+
+@functools.lru_cache(maxsize=None)
+@other_deco_before
+def fixme4():
+    pass
+
+
+@lru_cache( # A 
+) # B
+def fixme5():
+    pass
+
+
+@lru_cache(
+    # A
+)   # B
+def fixme6():
+    pass
+
+
+@functools.lru_cache(
+    # A
+    maxsize = None) # B
+def fixme7():
+    pass
+
+
+@functools.lru_cache(
+    # A1
+    maxsize = None
+    # A2
+) # B
+def fixme8():
+    pass
+
+
+@functools.lru_cache(
+    # A1
+    maxsize = 
+    None
+    # A2
+
+)
+def fixme9():
+    pass
+
+
+@functools.lru_cache(
+    # A1
+    maxsize = 
+    None
+    # A2
+)
+def fixme10():
+    pass
+
+
+@lru_cache
+def correct1():
+    pass
+
+
+@functools.lru_cache
+def correct2():
+    pass
+
+
+@functoools.lru_cache(maxsize=64)
+def correct3():
+    pass
+
+
+def user_func():
+    pass
+
+
+@lru_cache(user_func)
+def correct4():
+    pass
+
+
+@lru_cache(user_func, maxsize=None)
+def correct5():
+    pass

resources/test/fixtures/U011_1.py

@@ -0,0 +1,15 @@
+import functools
+
+
+def lru_cache(maxsize=None):
+    pass
+
+
+@lru_cache()
+def dont_fixme():
+    pass
+
+
+@lru_cache(maxsize=None)
+def dont_fixme():
+    pass

resources/test/fixtures/YTT101.py

@@ -0,0 +1,13 @@
+import sys
+from sys import version, version as v
+
+print(sys.version)
+
+print(sys.version[:3])
+print(version[:3])
+
+# ignore from imports with aliases, patches welcome
+print(v[:3])
+# the tool is timid and only flags certain numeric slices
+i = 3
+print(sys.version[:i])

resources/test/fixtures/YTT102.py

@@ -0,0 +1,5 @@
+import sys
+from sys import version
+
+py_minor = sys.version[2]
+py_minor = version[2]

resources/test/fixtures/YTT103.py

@@ -0,0 +1,8 @@
+import sys
+from sys import version
+
+version < "3.5"
+sys.version < "3.5"
+sys.version <= "3.5"
+sys.version > "3.5"
+sys.version >= "3.5"

resources/test/fixtures/YTT201.py

@@ -0,0 +1,10 @@
+import sys
+from sys import version_info
+
+print("{}.{}".format(*sys.version_info))
+PY3 = sys.version_info[0] >= 3
+
+PY3 = sys.version_info[0] == 3
+PY3 = version_info[0] == 3
+PY2 = sys.version_info[0] != 3
+PY2 = version_info[0] != 3

resources/test/fixtures/YTT202.py

@@ -0,0 +1,7 @@
+import six
+from six import PY3
+
+if six.PY3:
+    print("3")
+if PY3:
+    print("3")

resources/test/fixtures/YTT203.py

@@ -0,0 +1,5 @@
+import sys
+from sys import version_info
+
+sys.version_info[1] >= 5
+version_info[1] < 6

resources/test/fixtures/YTT204.py

@@ -0,0 +1,5 @@
+import sys
+from sys import version_info
+
+sys.version_info.minor <= 7
+version_info.minor > 8

resources/test/fixtures/YTT301.py

@@ -0,0 +1,5 @@
+import sys
+from sys import version
+
+py_major = sys.version[0]
+py_major = version[0]

resources/test/fixtures/YTT302.py

@@ -0,0 +1,8 @@
+import sys
+from sys import version
+
+version < "3"
+sys.version < "3"
+sys.version <= "3"
+sys.version > "3"
+sys.version >= "3"

resources/test/fixtures/YTT303.py

@@ -0,0 +1,5 @@
+import sys
+from sys import version
+
+print(sys.version[:1])
+print(version[:1])

resources/test/fixtures/excluded.py

@@ -1,9 +0,0 @@
-a = "abc"
-b = f"ghi{'jkl'}"
-
-c = f"def"
-d = f"def" + "ghi"
-e = (
-    f"def" +
-    "ghi"
-)

resources/test/fixtures/flake8_annotations/allow_star_arg_any.py

@@ -0,0 +1,57 @@
+from typing import Any
+
+
+# OK
+def foo(a: int, *args: str, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: Any, *args: str, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: str, **kwargs: str) -> Any:
+    pass
+
+
+# OK
+def foo(a: int, *args: Any, **kwargs: Any) -> int:
+    pass
+
+
+# OK
+def foo(a: int, *args: Any, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: str, **kwargs: Any) -> int:
+    pass
+
+
+class Bar:
+    # OK
+    def foo_method(self, a: int, *params: str, **options: str) -> int:
+        pass
+
+    # ANN401
+    def foo_method(self, a: Any, *params: str, **options: str) -> int:
+        pass
+
+    # ANN401
+    def foo_method(self, a: int, *params: str, **options: str) -> Any:
+        pass
+
+    # OK
+    def foo_method(self, a: int, *params: Any, **options: Any) -> int:
+        pass
+
+    # OK
+    def foo_method(self, a: int, *params: Any, **options: str) -> int:
+        pass
+
+    # OK
+    def foo_method(self, a: int, *params: str, **options: Any) -> int:
+        pass

resources/test/fixtures/flake8_annotations/annotation_presence.py

@@ -1,3 +1,5 @@
+from typing import Any, Type
+
 # Error
 def foo(a, b):
     pass
@@ -31,3 +33,73 @@ def foo(a: int, b: int) -> int:
 # OK
 def foo() -> int:
     pass
+
+
+# OK
+def foo(a: int, *args: str, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: Any, *args: str, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: str, **kwargs: str) -> Any:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: Any, **kwargs: Any) -> int:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: Any, **kwargs: str) -> int:
+    pass
+
+
+# ANN401
+def foo(a: int, *args: str, **kwargs: Any) -> int:
+    pass
+
+
+class Foo:
+    # OK
+    def foo(self: "Foo", a: int, b: int) -> int:
+        pass
+
+    # ANN101
+    def foo(self, a: int, b: int) -> int:
+        pass
+
+    # ANN401
+    def foo(self: "Foo", a: Any, *params: str, **options: str) -> int:
+        pass
+
+    # ANN401
+    def foo(self: "Foo", a: int, *params: str, **options: str) -> Any:
+        pass
+
+    # ANN401
+    def foo(self: "Foo", a: int, *params: Any, **options: Any) -> int:
+        pass
+
+    # ANN401
+    def foo(self: "Foo", a: int, *params: Any, **options: str) -> int:
+        pass
+
+    # ANN401
+    def foo(self: "Foo", a: int, *params: str, **options: Any) -> int:
+        pass
+
+    # OK
+    @classmethod
+    def foo(cls: Type["Foo"], a: int, b: int) -> int:
+        pass
+
+    # ANN102
+    @classmethod
+    def foo(cls, a: int, b: int) -> int:
+        pass

resources/test/fixtures/isort/combine_import_froms.py

@@ -0,0 +1,5 @@
+from collections import Awaitable
+from collections import AsyncIterable
+from collections import Collection
+from collections import ChainMap
+from collections import MutableSequence, MutableMapping

resources/test/fixtures/isort/deduplicate_imports.py

@@ -0,0 +1,4 @@
+import os
+import os
+import os as os1
+import os as os2

resources/test/fixtures/isort/fit_line_length.py

@@ -0,0 +1 @@
+from collections import Collection

resources/test/fixtures/isort/import_from_after_import.py

@@ -0,0 +1,2 @@
+from collections import Collection
+import os

resources/test/fixtures/isort/leading_prefix.py

@@ -0,0 +1,6 @@
+x = 1; import sys
+import os
+
+if True:
+    x = 1; import sys
+    import os

resources/test/fixtures/isort/no_reorder_within_section.py

@@ -0,0 +1,3 @@
+# OK
+import os
+import sys

resources/test/fixtures/isort/order_by_type.py

@@ -0,0 +1,12 @@
+import StringIO
+import glob
+import os
+import shutil
+import tempfile
+import time
+from subprocess import PIPE, Popen, STDOUT
+from module import Class, CONSTANT, function, BASIC, Apple
+import foo
+import FOO
+import BAR
+import bar

resources/test/fixtures/isort/preserve_indentation.py

@@ -0,0 +1,6 @@
+if True:
+    import sys
+    import os
+else:
+    import sys
+    import os

resources/test/fixtures/isort/pyproject.toml

@@ -0,0 +1,2 @@
+[tool.ruff]
+line-length = 88

resources/test/fixtures/isort/reorder_within_section.py

@@ -0,0 +1,2 @@
+import sys
+import os

resources/test/fixtures/isort/separate_first_party_imports.py

@@ -0,0 +1,5 @@
+import sys
+import leading_prefix
+import numpy as np
+import os
+from leading_prefix import Class

resources/test/fixtures/isort/separate_future_imports.py

@@ -0,0 +1,3 @@
+import sys
+import os
+from __future__ import annotations

resources/test/fixtures/isort/separate_local_folder_imports.py

@@ -0,0 +1,4 @@
+import sys
+import leading_prefix
+import os
+from . import leading_prefix

resources/test/fixtures/isort/separate_third_party_imports.py

@@ -0,0 +1,4 @@
+import pandas as pd
+import sys
+import numpy as np
+import os

resources/test/fixtures/isort/skip.py

@@ -0,0 +1,10 @@
+# isort: off
+import sys
+import os
+import collections
+# isort: on
+
+import sys
+import os  # isort: skip
+import collections
+import abc

resources/test/fixtures/isort/trailing_suffix.py

@@ -0,0 +1,6 @@
+import sys
+import os; x = 1
+
+if True:
+    import sys
+    import os; x = 1

resources/test/fixtures/pyproject.toml

@@ -1,9 +1,9 @@
 [tool.ruff]
 line-length = 88
 extend-exclude = [
-  "excluded.py",
+  "excluded_file.py",
   "migrations",
-  "directory/also_excluded.py",
+  "with_excluded_file/other_excluded_file.py",
 ]
 per-file-ignores = { "__init__.py" = ["F401"] }
 

ruff/__main__.py

@@ -0,0 +1,7 @@
+import os
+import sys
+import sysconfig
+
+if __name__ == "__main__":
+    ruff = os.path.join(sysconfig.get_path("scripts"), "ruff")
+    os.spawnv(os.P_WAIT, ruff, [ruff, *sys.argv[1:]])

ruff_dev/Cargo.toml

@@ -1,16 +1,17 @@
 [package]
 name = "ruff_dev"
-version = "0.0.105"
+version = "0.0.113"
 edition = "2021"
 
 [dependencies]
-anyhow = { version = "1.0.60" }
+anyhow = { version = "1.0.66" }
 clap = { version = "4.0.1", features = ["derive"] }
 codegen = { version = "0.2.0" }
 itertools = { version = "0.10.5" }
+libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "a13ec97dd4eb925bde4d426c6e422582793b260c" }
 ruff = { path = ".." }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "77b821a1941019fe34f73ce17cea013ae1b98fd0" }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
 strum = { version = "0.24.1", features = ["strum_macros"] }
 strum_macros = { version = "0.24.3" }

ruff_dev/src/lib.rs

@@ -2,4 +2,5 @@ pub mod generate_check_code_prefix;
 pub mod generate_rules_table;
 pub mod generate_source_code;
 pub mod print_ast;
+pub mod print_cst;
 pub mod print_tokens;

ruff_dev/src/main.rs

@@ -1,7 +1,8 @@
 use anyhow::Result;
 use clap::{Parser, Subcommand};
 use ruff_dev::{
-    generate_check_code_prefix, generate_rules_table, generate_source_code, print_ast, print_tokens,
+    generate_check_code_prefix, generate_rules_table, generate_source_code, print_ast, print_cst,
+    print_tokens,
 };
 
 #[derive(Parser)]
@@ -22,6 +23,8 @@ enum Commands {
     GenerateSourceCode(generate_source_code::Cli),
     /// Print the AST for a given Python file.
     PrintAST(print_ast::Cli),
+    /// Print the LibCST CST for a given Python file.
+    PrintCST(print_cst::Cli),
     /// Print the token stream for a given Python file.
     PrintTokens(print_tokens::Cli),
 }
@@ -33,6 +36,7 @@ fn main() -> Result<()> {
         Commands::GenerateRulesTable(args) => generate_rules_table::main(args)?,
         Commands::GenerateSourceCode(args) => generate_source_code::main(args)?,
         Commands::PrintAST(args) => print_ast::main(args)?,
+        Commands::PrintCST(args) => print_cst::main(args)?,
         Commands::PrintTokens(args) => print_tokens::main(args)?,
     }
     Ok(())

ruff_dev/src/print_cst.rs

@@ -0,0 +1,25 @@
+//! Print the LibCST CST for a given Python file.
+
+use std::fs;
+use std::path::PathBuf;
+
+use anyhow::Result;
+use clap::Args;
+
+#[derive(Args)]
+pub struct Cli {
+    /// Python file for which to generate the CST.
+    #[arg(required = true)]
+    file: PathBuf,
+}
+
+pub fn main(cli: &Cli) -> Result<()> {
+    let contents = fs::read_to_string(&cli.file)?;
+    match libcst_native::parse_module(&contents, None) {
+        Ok(python_cst) => {
+            println!("{:#?}", python_cst);
+            Ok(())
+        }
+        Err(_) => Err(anyhow::anyhow!("Failed to parse CST")),
+    }
+}

src/ast/types.rs

@@ -46,6 +46,7 @@ pub enum ScopeKind<'a> {
     Generator,
     Module,
     Arg,
+    Lambda,
 }
 
 #[derive(Clone, Debug)]

src/check_ast.rs

@@ -32,16 +32,19 @@ use crate::settings::Settings;
 use crate::source_code_locator::SourceCodeLocator;
 use crate::visibility::{module_visibility, transition_scope, Modifier, Visibility, VisibleScope};
 use crate::{
-    docstrings, flake8_annotations, flake8_bugbear, flake8_builtins, flake8_comprehensions,
-    flake8_print, pep8_naming, pycodestyle, pydocstyle, pyflakes, pyupgrade,
+    docstrings, flake8_2020, flake8_annotations, flake8_bugbear, flake8_builtins,
+    flake8_comprehensions, flake8_print, pep8_naming, pycodestyle, pydocstyle, pyflakes, pyupgrade,
 };
 
 const GLOBAL_SCOPE_INDEX: usize = 0;
-const TRACK_FROM_IMPORTS: [&str; 9] = [
+const TRACK_FROM_IMPORTS: [&str; 12] = [
     "collections",
     "collections.abc",
     "contextlib",
+    "functools",
     "re",
+    "six",
+    "sys",
     "typing",
     "typing.io",
     "typing.re",
@@ -62,6 +65,8 @@ pub struct Checker<'a> {
     // Edit tracking.
     // TODO(charlie): Instead of exposing deletions, wrap in a public API.
     pub(crate) deletions: BTreeSet<usize>,
+    // Import tracking.
+    pub(crate) from_imports: BTreeMap<&'a str, BTreeSet<&'a str>>,
     // Retain all scopes and parent nodes, along with a stack of indexes to track which are active
     // at various points in time.
     pub(crate) parents: Vec<&'a Stmt>,
@@ -84,7 +89,6 @@ pub struct Checker<'a> {
     futures_allowed: bool,
     annotations_future_enabled: bool,
     except_handlers: Vec<Vec<String>>,
-    from_imports: BTreeMap<&'a str, BTreeSet<&'a str>>,
 }
 
 impl<'a> Checker<'a> {
@@ -102,6 +106,7 @@ impl<'a> Checker<'a> {
             checks: Default::default(),
             definitions: Default::default(),
             deletions: Default::default(),
+            from_imports: Default::default(),
             parents: Default::default(),
             parent_stack: Default::default(),
             scopes: Default::default(),
@@ -112,6 +117,7 @@ impl<'a> Checker<'a> {
             deferred_functions: Default::default(),
             deferred_lambdas: Default::default(),
             deferred_assignments: Default::default(),
+            // Internal, derivative state.
             visible_scope: VisibleScope {
                 modifier: Modifier::Module,
                 visibility: module_visibility(path),
@@ -124,7 +130,6 @@ impl<'a> Checker<'a> {
             futures_allowed: true,
             annotations_future_enabled: Default::default(),
             except_handlers: Default::default(),
-            from_imports: Default::default(),
         }
     }
 
@@ -332,6 +337,12 @@ where
                     }
                 }
 
+                if self.settings.enabled.contains(&CheckCode::U011)
+                    && self.settings.target_version >= PythonVersion::Py38
+                {
+                    pyupgrade::plugins::unnecessary_lru_cache_params(self, decorator_list);
+                }
+
                 if self.settings.enabled.contains(&CheckCode::B018) {
                     flake8_bugbear::plugins::useless_expression(self, body);
                 }
@@ -624,6 +635,14 @@ where
                             }
                         }
 
+                        if self.settings.enabled.contains(&CheckCode::U010) {
+                            pyupgrade::plugins::unnecessary_future_import(
+                                self,
+                                stmt,
+                                &alias.node.name,
+                            );
+                        }
+
                         if self.settings.enabled.contains(&CheckCode::F404) && !self.futures_allowed
                         {
                             self.add_check(Check::new(
@@ -967,6 +986,14 @@ where
                 if self.match_typing_module(value, "Literal") {
                     self.in_literal = true;
                 }
+
+                if self.settings.enabled.contains(&CheckCode::YTT101)
+                    || self.settings.enabled.contains(&CheckCode::YTT102)
+                    || self.settings.enabled.contains(&CheckCode::YTT301)
+                    || self.settings.enabled.contains(&CheckCode::YTT303)
+                {
+                    flake8_2020::plugins::subscript(self, value, slice);
+                }
             }
             ExprKind::Tuple { elts, ctx } | ExprKind::List { elts, ctx } => {
                 if matches!(ctx, ExprContext::Store) {
@@ -984,34 +1011,40 @@ where
                     }
                 }
             }
-            ExprKind::Name { id, ctx } => match ctx {
-                ExprContext::Load => {
-                    // Ex) List[...]
-                    if self.settings.enabled.contains(&CheckCode::U006)
-                        && self.settings.target_version >= PythonVersion::Py39
-                        && typing::is_pep585_builtin(expr, self.from_imports.get("typing"))
-                    {
-                        pyupgrade::plugins::use_pep585_annotation(self, expr, id);
-                    }
-
-                    self.handle_node_load(expr);
-                }
-                ExprContext::Store => {
-                    if self.settings.enabled.contains(&CheckCode::E741) {
-                        if let Some(check) = pycodestyle::checks::ambiguous_variable_name(
-                            id,
-                            Range::from_located(expr),
-                        ) {
-                            self.add_check(check);
+            ExprKind::Name { id, ctx } => {
+                match ctx {
+                    ExprContext::Load => {
+                        // Ex) List[...]
+                        if self.settings.enabled.contains(&CheckCode::U006)
+                            && self.settings.target_version >= PythonVersion::Py39
+                            && typing::is_pep585_builtin(expr, self.from_imports.get("typing"))
+                        {
+                            pyupgrade::plugins::use_pep585_annotation(self, expr, id);
                         }
+
+                        self.handle_node_load(expr);
                     }
+                    ExprContext::Store => {
+                        if self.settings.enabled.contains(&CheckCode::E741) {
+                            if let Some(check) = pycodestyle::checks::ambiguous_variable_name(
+                                id,
+                                Range::from_located(expr),
+                            ) {
+                                self.add_check(check);
+                            }
+                        }
 
-                    self.check_builtin_shadowing(id, Range::from_located(expr), true);
+                        self.check_builtin_shadowing(id, Range::from_located(expr), true);
 
-                    self.handle_node_store(expr, self.current_parent());
+                        self.handle_node_store(expr, self.current_parent());
+                    }
+                    ExprContext::Del => self.handle_node_delete(expr),
                 }
-                ExprContext::Del => self.handle_node_delete(expr),
-            },
+
+                if self.settings.enabled.contains(&CheckCode::YTT202) {
+                    flake8_2020::plugins::name_or_attribute(self, expr);
+                }
+            }
             ExprKind::Attribute { attr, .. } => {
                 // Ex) typing.List[...]
                 if self.settings.enabled.contains(&CheckCode::U006)
@@ -1020,6 +1053,10 @@ where
                 {
                     pyupgrade::plugins::use_pep585_annotation(self, expr, attr);
                 }
+
+                if self.settings.enabled.contains(&CheckCode::YTT202) {
+                    flake8_2020::plugins::name_or_attribute(self, expr);
+                }
             }
             ExprKind::Call {
                 func,
@@ -1042,6 +1079,31 @@ where
                     flake8_print::plugins::print_call(self, expr, func);
                 }
 
+                if self.settings.enabled.contains(&CheckCode::B004) {
+                    flake8_bugbear::plugins::unreliable_callable_check(self, expr, func, args);
+                }
+                if self.settings.enabled.contains(&CheckCode::B005) {
+                    flake8_bugbear::plugins::strip_with_multi_characters(self, expr, func, args);
+                }
+                if self.settings.enabled.contains(&CheckCode::B009) {
+                    flake8_bugbear::plugins::getattr_with_constant(self, expr, func, args);
+                }
+                if self.settings.enabled.contains(&CheckCode::B010) {
+                    if !self
+                        .scope_stack
+                        .iter()
+                        .rev()
+                        .any(|index| matches!(self.scopes[*index].kind, ScopeKind::Lambda))
+                    {
+                        flake8_bugbear::plugins::setattr_with_constant(self, expr, func, args);
+                    }
+                }
+                if self.settings.enabled.contains(&CheckCode::B026) {
+                    flake8_bugbear::plugins::star_arg_unpacking_after_keyword_arg(
+                        self, args, keywords,
+                    );
+                }
+
                 // flake8-comprehensions
                 if self.settings.enabled.contains(&CheckCode::C400) {
                     if let Some(check) = flake8_comprehensions::checks::unnecessary_generator_list(
@@ -1104,9 +1166,12 @@ where
                 if self.settings.enabled.contains(&CheckCode::C404) {
                     if let Some(check) =
                         flake8_comprehensions::checks::unnecessary_list_comprehension_dict(
+                            expr,
                             func,
                             args,
                             keywords,
+                            self.locator,
+                            self.patch(),
                             Range::from_located(expr),
                         )
                     {
@@ -1202,8 +1267,11 @@ where
                 if self.settings.enabled.contains(&CheckCode::C413) {
                     if let Some(check) =
                         flake8_comprehensions::checks::unnecessary_call_around_sorted(
+                            expr,
                             func,
                             args,
+                            self.locator,
+                            self.patch(),
                             Range::from_located(expr),
                         )
                     {
@@ -1374,6 +1442,15 @@ where
                         .into_iter(),
                     );
                 }
+
+                if self.settings.enabled.contains(&CheckCode::YTT103)
+                    || self.settings.enabled.contains(&CheckCode::YTT201)
+                    || self.settings.enabled.contains(&CheckCode::YTT203)
+                    || self.settings.enabled.contains(&CheckCode::YTT204)
+                    || self.settings.enabled.contains(&CheckCode::YTT302)
+                {
+                    flake8_2020::plugins::compare(self, left, ops, comparators);
+                }
             }
             ExprKind::Constant {
                 value: Constant::Str(value),
@@ -1417,8 +1494,8 @@ where
                 for expr in &args.defaults {
                     self.visit_expr(expr);
                 }
+                self.push_scope(Scope::new(ScopeKind::Lambda))
             }
-
             ExprKind::ListComp { elt, generators } | ExprKind::SetComp { elt, generators } => {
                 if self.settings.enabled.contains(&CheckCode::C416) {
                     if let Some(check) = flake8_comprehensions::checks::unnecessary_comprehension(
@@ -1434,7 +1511,6 @@ where
                 }
                 self.push_scope(Scope::new(ScopeKind::Generator))
             }
-
             ExprKind::GeneratorExp { .. } | ExprKind::DictComp { .. } => {
                 self.push_scope(Scope::new(ScopeKind::Generator))
             }
@@ -1605,7 +1681,8 @@ where
 
         // Post-visit.
         match &expr.node {
-            ExprKind::GeneratorExp { .. }
+            ExprKind::Lambda { .. }
+            | ExprKind::GeneratorExp { .. }
             | ExprKind::ListComp { .. }
             | ExprKind::DictComp { .. }
             | ExprKind::SetComp { .. } => {
@@ -2197,7 +2274,7 @@ impl<'a> Checker<'a> {
         while let Some((expr, scopes, parents)) = self.deferred_lambdas.pop() {
             self.parent_stack = parents;
             self.scope_stack = scopes;
-            self.push_scope(Scope::new(ScopeKind::Function(Default::default())));
+            self.push_scope(Scope::new(ScopeKind::Lambda));
 
             if let ExprKind::Lambda { args, body } = &expr.node {
                 self.visit_arguments(args);
@@ -2381,17 +2458,16 @@ impl<'a> Checker<'a> {
         while let Some((definition, visibility)) = self.definitions.pop() {
             // flake8-annotations
             if self.settings.enabled.contains(&CheckCode::ANN001)
-                || self.settings.enabled.contains(&CheckCode::ANN002)
-                || self.settings.enabled.contains(&CheckCode::ANN003)
-                || self.settings.enabled.contains(&CheckCode::ANN201)
-                || self.settings.enabled.contains(&CheckCode::ANN202)
-                || self.settings.enabled.contains(&CheckCode::ANN001)
                 || self.settings.enabled.contains(&CheckCode::ANN002)
                 || self.settings.enabled.contains(&CheckCode::ANN003)
                 || self.settings.enabled.contains(&CheckCode::ANN101)
                 || self.settings.enabled.contains(&CheckCode::ANN102)
                 || self.settings.enabled.contains(&CheckCode::ANN201)
                 || self.settings.enabled.contains(&CheckCode::ANN202)
+                || self.settings.enabled.contains(&CheckCode::ANN204)
+                || self.settings.enabled.contains(&CheckCode::ANN205)
+                || self.settings.enabled.contains(&CheckCode::ANN206)
+                || self.settings.enabled.contains(&CheckCode::ANN401)
             {
                 flake8_annotations::plugins::definition(self, &definition, &visibility);
             }
@@ -2555,5 +2631,8 @@ pub fn check_ast(
     // Check docstrings.
     checker.check_definitions();
 
+    // Check import blocks.
+    // checker.check_import_blocks();
+
     checker.checks
 }

src/check_imports.rs

@@ -0,0 +1,43 @@
+//! Lint rules based on import analysis.
+
+use nohash_hasher::IntSet;
+use rustpython_parser::ast::Suite;
+
+use crate::ast::visitor::Visitor;
+use crate::autofix::fixer;
+use crate::checks::Check;
+use crate::isort;
+use crate::isort::track::ImportTracker;
+use crate::settings::Settings;
+use crate::source_code_locator::SourceCodeLocator;
+
+fn check_import_blocks(
+    tracker: ImportTracker,
+    locator: &SourceCodeLocator,
+    settings: &Settings,
+    autofix: &fixer::Mode,
+) -> Vec<Check> {
+    let mut checks = vec![];
+    for block in tracker.into_iter() {
+        if !block.is_empty() {
+            if let Some(check) = isort::plugins::check_imports(block, locator, settings, autofix) {
+                checks.push(check);
+            }
+        }
+    }
+    checks
+}
+
+pub fn check_imports(
+    python_ast: &Suite,
+    locator: &SourceCodeLocator,
+    exclusions: &IntSet<usize>,
+    settings: &Settings,
+    autofix: &fixer::Mode,
+) -> Vec<Check> {
+    let mut tracker = ImportTracker::new(exclusions);
+    for stmt in python_ast {
+        tracker.visit_stmt(stmt);
+    }
+    check_import_blocks(tracker, locator, settings, autofix)
+}

src/check_lines.rs

@@ -1,7 +1,6 @@
 //! Lint rules based on checking raw physical lines.
 
-use std::collections::BTreeMap;
-
+use nohash_hasher::IntMap;
 use once_cell::sync::Lazy;
 use regex::Regex;
 use rustpython_parser::ast::Location;
@@ -36,46 +35,55 @@ fn should_enforce_line_length(line: &str, length: usize, limit: usize) -> bool {
 pub fn check_lines(
     checks: &mut Vec<Check>,
     contents: &str,
-    noqa_line_for: &[usize],
+    noqa_line_for: &IntMap<usize, usize>,
     settings: &Settings,
     autofix: &fixer::Mode,
 ) {
+    let enforce_unnecessary_coding_comment = settings.enabled.contains(&CheckCode::U009);
     let enforce_line_too_long = settings.enabled.contains(&CheckCode::E501);
     let enforce_noqa = settings.enabled.contains(&CheckCode::M001);
 
-    let mut noqa_directives: BTreeMap<usize, (Directive, Vec<&str>)> = BTreeMap::new();
-
+    let mut noqa_directives: IntMap<usize, (Directive, Vec<&str>)> = IntMap::default();
     let mut line_checks = vec![];
     let mut ignored = vec![];
 
+    checks.sort_by_key(|check| check.location);
+    let mut checks_iter = checks.iter().enumerate().peekable();
+    if let Some((_index, check)) = checks_iter.peek() {
+        assert!(check.location.row() >= 1);
+    }
+
     let lines: Vec<&str> = contents.lines().collect();
     for (lineno, line) in lines.iter().enumerate() {
         // Grab the noqa (logical) line number for the current (physical) line.
         // If there are newlines at the end of the file, they won't be represented in
         // `noqa_line_for`, so fallback to the current line.
         let noqa_lineno = noqa_line_for
-            .get(lineno)
+            .get(&lineno)
             .map(|lineno| lineno - 1)
             .unwrap_or(lineno);
 
-        if lineno < 2 {
-            // PEP3120 makes utf-8 the default encoding.
-            if CODING_COMMENT_REGEX.is_match(line) {
-                let line_length = line.len();
-                let mut check = Check::new(
-                    CheckKind::PEP3120UnnecessaryCodingComment,
-                    Range {
-                        location: Location::new(lineno + 1, 0),
-                        end_location: Location::new(lineno + 1, line_length + 1),
-                    },
-                );
-                if autofix.patch() {
-                    check.amend(Fix::deletion(
-                        Location::new(lineno + 1, 0),
-                        Location::new(lineno + 1, line_length + 1),
-                    ));
+        // Enforce unnecessary coding comments (U009).
+        if enforce_unnecessary_coding_comment {
+            if lineno < 2 {
+                // PEP3120 makes utf-8 the default encoding.
+                if CODING_COMMENT_REGEX.is_match(line) {
+                    let line_length = line.len();
+                    let mut check = Check::new(
+                        CheckKind::PEP3120UnnecessaryCodingComment,
+                        Range {
+                            location: Location::new(lineno + 1, 0),
+                            end_location: Location::new(lineno + 1, line_length + 1),
+                        },
+                    );
+                    if autofix.patch() {
+                        check.amend(Fix::deletion(
+                            Location::new(lineno + 1, 0),
+                            Location::new(lineno + 1, line_length + 1),
+                        ));
+                    }
+                    line_checks.push(check);
                 }
-                line_checks.push(check);
             }
         }
 
@@ -86,30 +94,29 @@ pub fn check_lines(
         }
 
         // Remove any ignored checks.
-        // TODO(charlie): Only validate checks for the current line.
-        for (index, check) in checks.iter().enumerate() {
-            if check.location.row() == lineno + 1 {
-                let noqa = noqa_directives
-                    .entry(noqa_lineno)
-                    .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
+        while let Some((index, check)) =
+            checks_iter.next_if(|(_index, check)| check.location.row() == lineno + 1)
+        {
+            let noqa = noqa_directives
+                .entry(noqa_lineno)
+                .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
 
-                match noqa {
-                    (Directive::All(..), matches) => {
-                        matches.push(check.kind.code().as_ref());
-                        ignored.push(index)
-                    }
-                    (Directive::Codes(_, _, codes), matches) => {
-                        if codes.contains(&check.kind.code().as_ref()) {
-                            matches.push(check.kind.code().as_ref());
-                            ignored.push(index);
-                        }
-                    }
-                    (Directive::None, _) => {}
+            match noqa {
+                (Directive::All(..), matches) => {
+                    matches.push(check.kind.code().as_ref());
+                    ignored.push(index)
                 }
+                (Directive::Codes(_, _, codes), matches) => {
+                    if codes.contains(&check.kind.code().as_ref()) {
+                        matches.push(check.kind.code().as_ref());
+                        ignored.push(index);
+                    }
+                }
+                (Directive::None, _) => {}
             }
         }
 
-        // Enforce line length.
+        // Enforce line length violations (E501).
         if enforce_line_too_long {
             let line_length = line.chars().count();
             if should_enforce_line_length(line, line_length, settings.line_length) {
@@ -149,7 +156,7 @@ pub fn check_lines(
         if let Some(line) = lines.last() {
             let lineno = lines.len() - 1;
             let noqa_lineno = noqa_line_for
-                .get(lineno)
+                .get(&lineno)
                 .map(|lineno| lineno - 1)
                 .unwrap_or(lineno);
 
@@ -253,6 +260,8 @@ pub fn check_lines(
 
 #[cfg(test)]
 mod tests {
+    use nohash_hasher::IntMap;
+
     use super::check_lines;
     use crate::autofix::fixer;
     use crate::checks::{Check, CheckCode};
@@ -261,7 +270,7 @@ mod tests {
     #[test]
     fn e501_non_ascii_char() {
         let line = "'\u{4e9c}' * 2"; // 7 in UTF-32, 9 in UTF-8.
-        let noqa_line_for: Vec<usize> = vec![1];
+        let noqa_line_for: IntMap<usize, usize> = Default::default();
         let check_with_max_line_length = |line_length: usize| {
             let mut checks: Vec<Check> = vec![];
             check_lines(

src/check_tokens.rs

@@ -5,6 +5,7 @@ use rustpython_parser::lexer::{LexResult, Tok};
 use crate::autofix::fixer;
 use crate::checks::{Check, CheckCode};
 use crate::lex::docstring_detection::StateMachine;
+use crate::rules::checks::Context;
 use crate::source_code_locator::SourceCodeLocator;
 use crate::{flake8_quotes, pycodestyle, rules, Settings};
 
@@ -16,7 +17,8 @@ pub fn check_tokens(
     autofix: &fixer::Mode,
 ) {
     let enforce_ambiguous_unicode_character = settings.enabled.contains(&CheckCode::RUF001)
-        || settings.enabled.contains(&CheckCode::RUF002);
+        || settings.enabled.contains(&CheckCode::RUF002)
+        || settings.enabled.contains(&CheckCode::RUF003);
     let enforce_quotes = settings.enabled.contains(&CheckCode::Q000)
         || settings.enabled.contains(&CheckCode::Q001)
         || settings.enabled.contains(&CheckCode::Q002)
@@ -31,14 +33,22 @@ pub fn check_tokens(
             false
         };
 
-        // RUF001, RUF002
+        // RUF001, RUF002, RUF003
         if enforce_ambiguous_unicode_character {
-            if matches!(tok, Tok::String { .. }) {
+            if matches!(tok, Tok::String { .. } | Tok::Comment) {
                 for check in rules::checks::ambiguous_unicode_character(
                     locator,
                     start,
                     end,
-                    is_docstring,
+                    if matches!(tok, Tok::String { .. }) {
+                        if is_docstring {
+                            Context::Docstring
+                        } else {
+                            Context::String
+                        }
+                    } else {
+                        Context::Comment
+                    },
                     autofix.patch(),
                 ) {
                     if settings.enabled.contains(check.kind.code()) {

src/checks.rs

@@ -79,9 +79,13 @@ pub enum CheckCode {
     // flake8-bugbear
     B002,
     B003,
+    B004,
+    B005,
     B006,
     B007,
     B008,
+    B009,
+    B010,
     B011,
     B013,
     B014,
@@ -90,6 +94,7 @@ pub enum CheckCode {
     B017,
     B018,
     B025,
+    B026,
     // flake8-comprehensions
     C400,
     C401,
@@ -126,6 +131,18 @@ pub enum CheckCode {
     ANN204,
     ANN205,
     ANN206,
+    ANN401,
+    // flake8-2020
+    YTT101,
+    YTT102,
+    YTT103,
+    YTT201,
+    YTT202,
+    YTT203,
+    YTT204,
+    YTT301,
+    YTT302,
+    YTT303,
     // pyupgrade
     U001,
     U002,
@@ -136,6 +153,8 @@ pub enum CheckCode {
     U007,
     U008,
     U009,
+    U010,
+    U011,
     // pydocstyle
     D100,
     D101,
@@ -197,9 +216,12 @@ pub enum CheckCode {
     N816,
     N817,
     N818,
+    // isort
+    I001,
     // Ruff
     RUF001,
     RUF002,
+    RUF003,
     // Meta
     M001,
 }
@@ -208,6 +230,7 @@ pub enum CheckCode {
 pub enum CheckCategory {
     Pyflakes,
     Pycodestyle,
+    Isort,
     Pydocstyle,
     Pyupgrade,
     PEP8Naming,
@@ -217,6 +240,7 @@ pub enum CheckCategory {
     Flake8Print,
     Flake8Quotes,
     Flake8Annotations,
+    Flake82020,
     Ruff,
     Meta,
 }
@@ -226,12 +250,14 @@ impl CheckCategory {
         match self {
             CheckCategory::Pycodestyle => "pycodestyle",
             CheckCategory::Pyflakes => "Pyflakes",
+            CheckCategory::Isort => "isort",
             CheckCategory::Flake8Builtins => "flake8-builtins",
             CheckCategory::Flake8Bugbear => "flake8-bugbear",
             CheckCategory::Flake8Comprehensions => "flake8-comprehensions",
             CheckCategory::Flake8Print => "flake8-print",
             CheckCategory::Flake8Quotes => "flake8-quotes",
             CheckCategory::Flake8Annotations => "flake8-annotations",
+            CheckCategory::Flake82020 => "flake8-2020",
             CheckCategory::Pyupgrade => "pyupgrade",
             CheckCategory::Pydocstyle => "pydocstyle",
             CheckCategory::PEP8Naming => "pep8-naming",
@@ -244,6 +270,7 @@ impl CheckCategory {
         match self {
             CheckCategory::Pycodestyle => Some("https://pypi.org/project/pycodestyle/2.9.1/"),
             CheckCategory::Pyflakes => Some("https://pypi.org/project/pyflakes/2.5.0/"),
+            CheckCategory::Isort => Some("https://pypi.org/project/isort/5.10.1/"),
             CheckCategory::Flake8Builtins => {
                 Some("https://pypi.org/project/flake8-builtins/2.0.1/")
             }
@@ -258,6 +285,7 @@ impl CheckCategory {
             CheckCategory::Flake8Annotations => {
                 Some("https://pypi.org/project/flake8-annotations/2.9.1/")
             }
+            CheckCategory::Flake82020 => Some("https://pypi.org/project/flake8-2020/1.7.0/"),
             CheckCategory::Pyupgrade => Some("https://pypi.org/project/pyupgrade/3.2.0/"),
             CheckCategory::Pydocstyle => Some("https://pypi.org/project/pydocstyle/6.1.1/"),
             CheckCategory::PEP8Naming => Some("https://pypi.org/project/pep8-naming/0.13.2/"),
@@ -273,6 +301,7 @@ pub enum LintSource {
     FileSystem,
     Lines,
     Tokens,
+    Imports,
 }
 
 #[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
@@ -337,9 +366,13 @@ pub enum CheckKind {
     // flake8-bugbear
     UnaryPrefixIncrement,
     AssignmentToOsEnviron,
+    UnreliableCallableCheck,
+    StripWithMultiCharacters,
     MutableArgumentDefault,
     UnusedLoopControlVariable(String),
     FunctionCallArgumentDefault,
+    GetAttrWithConstant,
+    SetAttrWithConstant,
     DoNotAssertFalse,
     RedundantTupleInExceptionHandler(String),
     DuplicateHandlerException(Vec<String>),
@@ -348,6 +381,7 @@ pub enum CheckKind {
     NoAssertRaisesException,
     UselessExpression,
     DuplicateTryBlockException(String),
+    StarArgUnpackingAfterKeywordArg,
     // flake8-comprehensions
     UnnecessaryGeneratorList,
     UnnecessaryGeneratorSet,
@@ -374,16 +408,28 @@ pub enum CheckKind {
     BadQuotesDocstring(Quote),
     AvoidQuoteEscape,
     // flake8-annotations
-    MissingTypeFunctionArgument,
-    MissingTypeArgs,
-    MissingTypeKwargs,
-    MissingTypeSelf,
-    MissingTypeCls,
-    MissingReturnTypePublicFunction,
-    MissingReturnTypePrivateFunction,
-    MissingReturnTypeMagicMethod,
-    MissingReturnTypeStaticMethod,
-    MissingReturnTypeClassMethod,
+    MissingTypeFunctionArgument(String),
+    MissingTypeArgs(String),
+    MissingTypeKwargs(String),
+    MissingTypeSelf(String),
+    MissingTypeCls(String),
+    MissingReturnTypePublicFunction(String),
+    MissingReturnTypePrivateFunction(String),
+    MissingReturnTypeMagicMethod(String),
+    MissingReturnTypeStaticMethod(String),
+    MissingReturnTypeClassMethod(String),
+    DynamicallyTypedExpression(String),
+    // flake8-2020
+    SysVersionSlice3Referenced,
+    SysVersion2Referenced,
+    SysVersionCmpStr3,
+    SysVersionInfo0Eq3Referenced,
+    SixPY3Referenced,
+    SysVersionInfo1CmpInt,
+    SysVersionInfoMinorCmpInt,
+    SysVersion0Referenced,
+    SysVersionCmpStr10,
+    SysVersionSlice1Referenced,
     // pyupgrade
     TypeOfPrimitive(Primitive),
     UnnecessaryAbspath,
@@ -394,6 +440,8 @@ pub enum CheckKind {
     UsePEP604Annotation,
     SuperCallWithParameters,
     PEP3120UnnecessaryCodingComment,
+    UnnecessaryFutureImport(String),
+    UnnecessaryLRUCacheParams,
     // pydocstyle
     BlankLineAfterLastSection(String),
     BlankLineAfterSection(String),
@@ -455,9 +503,12 @@ pub enum CheckKind {
     MixedCaseVariableInGlobalScope(String),
     CamelcaseImportedAsAcronym(String, String),
     ErrorSuffixOnExceptionName(String),
+    // isort
+    UnsortedImports,
     // Ruff
     AmbiguousUnicodeCharacterString(char, char),
     AmbiguousUnicodeCharacterDocstring(char, char),
+    AmbiguousUnicodeCharacterComment(char, char),
     // Meta
     UnusedNOQA(Option<Vec<String>>),
 }
@@ -476,8 +527,10 @@ impl CheckCode {
             | CheckCode::Q003
             | CheckCode::W605
             | CheckCode::RUF001
-            | CheckCode::RUF002 => &LintSource::Tokens,
+            | CheckCode::RUF002
+            | CheckCode::RUF003 => &LintSource::Tokens,
             CheckCode::E902 => &LintSource::FileSystem,
+            CheckCode::I001 => &LintSource::Imports,
             _ => &LintSource::AST,
         }
     }
@@ -541,9 +594,13 @@ impl CheckCode {
             // flake8-bugbear
             CheckCode::B002 => CheckKind::UnaryPrefixIncrement,
             CheckCode::B003 => CheckKind::AssignmentToOsEnviron,
+            CheckCode::B004 => CheckKind::UnreliableCallableCheck,
+            CheckCode::B005 => CheckKind::StripWithMultiCharacters,
             CheckCode::B006 => CheckKind::MutableArgumentDefault,
             CheckCode::B007 => CheckKind::UnusedLoopControlVariable("i".to_string()),
             CheckCode::B008 => CheckKind::FunctionCallArgumentDefault,
+            CheckCode::B009 => CheckKind::GetAttrWithConstant,
+            CheckCode::B010 => CheckKind::SetAttrWithConstant,
             CheckCode::B011 => CheckKind::DoNotAssertFalse,
             CheckCode::B013 => {
                 CheckKind::RedundantTupleInExceptionHandler("ValueError".to_string())
@@ -554,6 +611,7 @@ impl CheckCode {
             CheckCode::B017 => CheckKind::NoAssertRaisesException,
             CheckCode::B018 => CheckKind::UselessExpression,
             CheckCode::B025 => CheckKind::DuplicateTryBlockException("Exception".to_string()),
+            CheckCode::B026 => CheckKind::StarArgUnpackingAfterKeywordArg,
             // flake8-comprehensions
             CheckCode::C400 => CheckKind::UnnecessaryGeneratorList,
             CheckCode::C401 => CheckKind::UnnecessaryGeneratorSet,
@@ -593,16 +651,28 @@ impl CheckCode {
             CheckCode::Q002 => CheckKind::BadQuotesDocstring(Quote::Double),
             CheckCode::Q003 => CheckKind::AvoidQuoteEscape,
             // flake8-annotations
-            CheckCode::ANN001 => CheckKind::MissingTypeFunctionArgument,
-            CheckCode::ANN002 => CheckKind::MissingTypeArgs,
-            CheckCode::ANN003 => CheckKind::MissingTypeKwargs,
-            CheckCode::ANN101 => CheckKind::MissingTypeSelf,
-            CheckCode::ANN102 => CheckKind::MissingTypeCls,
-            CheckCode::ANN201 => CheckKind::MissingReturnTypePublicFunction,
-            CheckCode::ANN202 => CheckKind::MissingReturnTypePrivateFunction,
-            CheckCode::ANN204 => CheckKind::MissingReturnTypeMagicMethod,
-            CheckCode::ANN205 => CheckKind::MissingReturnTypeStaticMethod,
-            CheckCode::ANN206 => CheckKind::MissingReturnTypeClassMethod,
+            CheckCode::ANN001 => CheckKind::MissingTypeFunctionArgument("...".to_string()),
+            CheckCode::ANN002 => CheckKind::MissingTypeArgs("...".to_string()),
+            CheckCode::ANN003 => CheckKind::MissingTypeKwargs("...".to_string()),
+            CheckCode::ANN101 => CheckKind::MissingTypeSelf("...".to_string()),
+            CheckCode::ANN102 => CheckKind::MissingTypeCls("...".to_string()),
+            CheckCode::ANN201 => CheckKind::MissingReturnTypePublicFunction("...".to_string()),
+            CheckCode::ANN202 => CheckKind::MissingReturnTypePrivateFunction("...".to_string()),
+            CheckCode::ANN204 => CheckKind::MissingReturnTypeMagicMethod("...".to_string()),
+            CheckCode::ANN205 => CheckKind::MissingReturnTypeStaticMethod("...".to_string()),
+            CheckCode::ANN206 => CheckKind::MissingReturnTypeClassMethod("...".to_string()),
+            CheckCode::ANN401 => CheckKind::DynamicallyTypedExpression("...".to_string()),
+            // flake8-2020
+            CheckCode::YTT101 => CheckKind::SysVersionSlice3Referenced,
+            CheckCode::YTT102 => CheckKind::SysVersion2Referenced,
+            CheckCode::YTT103 => CheckKind::SysVersionCmpStr3,
+            CheckCode::YTT201 => CheckKind::SysVersionInfo0Eq3Referenced,
+            CheckCode::YTT202 => CheckKind::SixPY3Referenced,
+            CheckCode::YTT203 => CheckKind::SysVersionInfo1CmpInt,
+            CheckCode::YTT204 => CheckKind::SysVersionInfoMinorCmpInt,
+            CheckCode::YTT301 => CheckKind::SysVersion0Referenced,
+            CheckCode::YTT302 => CheckKind::SysVersionCmpStr10,
+            CheckCode::YTT303 => CheckKind::SysVersionSlice1Referenced,
             // pyupgrade
             CheckCode::U001 => CheckKind::UselessMetaclassType,
             CheckCode::U002 => CheckKind::UnnecessaryAbspath,
@@ -616,6 +686,8 @@ impl CheckCode {
             CheckCode::U007 => CheckKind::UsePEP604Annotation,
             CheckCode::U008 => CheckKind::SuperCallWithParameters,
             CheckCode::U009 => CheckKind::PEP3120UnnecessaryCodingComment,
+            CheckCode::U010 => CheckKind::UnnecessaryFutureImport("...".to_string()),
+            CheckCode::U011 => CheckKind::UnnecessaryLRUCacheParams,
             // pydocstyle
             CheckCode::D100 => CheckKind::PublicModule,
             CheckCode::D101 => CheckKind::PublicClass,
@@ -693,9 +765,12 @@ impl CheckCode {
                 CheckKind::CamelcaseImportedAsAcronym("...".to_string(), "...".to_string())
             }
             CheckCode::N818 => CheckKind::ErrorSuffixOnExceptionName("...".to_string()),
+            // isort
+            CheckCode::I001 => CheckKind::UnsortedImports,
             // Ruff
             CheckCode::RUF001 => CheckKind::AmbiguousUnicodeCharacterString('𝐁', 'B'),
             CheckCode::RUF002 => CheckKind::AmbiguousUnicodeCharacterDocstring('𝐁', 'B'),
+            CheckCode::RUF003 => CheckKind::AmbiguousUnicodeCharacterComment('𝐁', 'B'),
             // Meta
             CheckCode::M001 => CheckKind::UnusedNOQA(None),
         }
@@ -752,9 +827,13 @@ impl CheckCode {
             CheckCode::A003 => CheckCategory::Flake8Builtins,
             CheckCode::B002 => CheckCategory::Flake8Bugbear,
             CheckCode::B003 => CheckCategory::Flake8Bugbear,
+            CheckCode::B004 => CheckCategory::Flake8Bugbear,
+            CheckCode::B005 => CheckCategory::Flake8Bugbear,
             CheckCode::B006 => CheckCategory::Flake8Bugbear,
             CheckCode::B007 => CheckCategory::Flake8Bugbear,
             CheckCode::B008 => CheckCategory::Flake8Bugbear,
+            CheckCode::B009 => CheckCategory::Flake8Bugbear,
+            CheckCode::B010 => CheckCategory::Flake8Bugbear,
             CheckCode::B011 => CheckCategory::Flake8Bugbear,
             CheckCode::B013 => CheckCategory::Flake8Bugbear,
             CheckCode::B014 => CheckCategory::Flake8Bugbear,
@@ -763,6 +842,7 @@ impl CheckCode {
             CheckCode::B017 => CheckCategory::Flake8Bugbear,
             CheckCode::B018 => CheckCategory::Flake8Bugbear,
             CheckCode::B025 => CheckCategory::Flake8Bugbear,
+            CheckCode::B026 => CheckCategory::Flake8Bugbear,
             CheckCode::C400 => CheckCategory::Flake8Comprehensions,
             CheckCode::C401 => CheckCategory::Flake8Comprehensions,
             CheckCode::C402 => CheckCategory::Flake8Comprehensions,
@@ -795,6 +875,17 @@ impl CheckCode {
             CheckCode::ANN204 => CheckCategory::Flake8Annotations,
             CheckCode::ANN205 => CheckCategory::Flake8Annotations,
             CheckCode::ANN206 => CheckCategory::Flake8Annotations,
+            CheckCode::ANN401 => CheckCategory::Flake8Annotations,
+            CheckCode::YTT101 => CheckCategory::Flake82020,
+            CheckCode::YTT102 => CheckCategory::Flake82020,
+            CheckCode::YTT103 => CheckCategory::Flake82020,
+            CheckCode::YTT201 => CheckCategory::Flake82020,
+            CheckCode::YTT202 => CheckCategory::Flake82020,
+            CheckCode::YTT203 => CheckCategory::Flake82020,
+            CheckCode::YTT204 => CheckCategory::Flake82020,
+            CheckCode::YTT301 => CheckCategory::Flake82020,
+            CheckCode::YTT302 => CheckCategory::Flake82020,
+            CheckCode::YTT303 => CheckCategory::Flake82020,
             CheckCode::U001 => CheckCategory::Pyupgrade,
             CheckCode::U002 => CheckCategory::Pyupgrade,
             CheckCode::U003 => CheckCategory::Pyupgrade,
@@ -804,6 +895,8 @@ impl CheckCode {
             CheckCode::U007 => CheckCategory::Pyupgrade,
             CheckCode::U008 => CheckCategory::Pyupgrade,
             CheckCode::U009 => CheckCategory::Pyupgrade,
+            CheckCode::U010 => CheckCategory::Pyupgrade,
+            CheckCode::U011 => CheckCategory::Pyupgrade,
             CheckCode::D100 => CheckCategory::Pydocstyle,
             CheckCode::D101 => CheckCategory::Pydocstyle,
             CheckCode::D102 => CheckCategory::Pydocstyle,
@@ -863,8 +956,10 @@ impl CheckCode {
             CheckCode::N816 => CheckCategory::PEP8Naming,
             CheckCode::N817 => CheckCategory::PEP8Naming,
             CheckCode::N818 => CheckCategory::PEP8Naming,
+            CheckCode::I001 => CheckCategory::Isort,
             CheckCode::RUF001 => CheckCategory::Ruff,
             CheckCode::RUF002 => CheckCategory::Ruff,
+            CheckCode::RUF003 => CheckCategory::Ruff,
             CheckCode::M001 => CheckCategory::Meta,
         }
     }
@@ -927,9 +1022,13 @@ impl CheckKind {
             // flake8-bugbear
             CheckKind::UnaryPrefixIncrement => &CheckCode::B002,
             CheckKind::AssignmentToOsEnviron => &CheckCode::B003,
+            CheckKind::UnreliableCallableCheck => &CheckCode::B004,
+            CheckKind::StripWithMultiCharacters => &CheckCode::B005,
             CheckKind::MutableArgumentDefault => &CheckCode::B006,
             CheckKind::UnusedLoopControlVariable(_) => &CheckCode::B007,
             CheckKind::FunctionCallArgumentDefault => &CheckCode::B008,
+            CheckKind::GetAttrWithConstant => &CheckCode::B009,
+            CheckKind::SetAttrWithConstant => &CheckCode::B010,
             CheckKind::DoNotAssertFalse => &CheckCode::B011,
             CheckKind::RedundantTupleInExceptionHandler(_) => &CheckCode::B013,
             CheckKind::DuplicateHandlerException(_) => &CheckCode::B014,
@@ -938,6 +1037,7 @@ impl CheckKind {
             CheckKind::NoAssertRaisesException => &CheckCode::B017,
             CheckKind::UselessExpression => &CheckCode::B018,
             CheckKind::DuplicateTryBlockException(_) => &CheckCode::B025,
+            CheckKind::StarArgUnpackingAfterKeywordArg => &CheckCode::B026,
             // flake8-comprehensions
             CheckKind::UnnecessaryGeneratorList => &CheckCode::C400,
             CheckKind::UnnecessaryGeneratorSet => &CheckCode::C401,
@@ -964,16 +1064,28 @@ impl CheckKind {
             CheckKind::BadQuotesDocstring(_) => &CheckCode::Q002,
             CheckKind::AvoidQuoteEscape => &CheckCode::Q003,
             // flake8-annotations
-            CheckKind::MissingTypeFunctionArgument => &CheckCode::ANN001,
-            CheckKind::MissingTypeArgs => &CheckCode::ANN002,
-            CheckKind::MissingTypeKwargs => &CheckCode::ANN003,
-            CheckKind::MissingTypeSelf => &CheckCode::ANN101,
-            CheckKind::MissingTypeCls => &CheckCode::ANN102,
-            CheckKind::MissingReturnTypePublicFunction => &CheckCode::ANN201,
-            CheckKind::MissingReturnTypePrivateFunction => &CheckCode::ANN202,
-            CheckKind::MissingReturnTypeMagicMethod => &CheckCode::ANN204,
-            CheckKind::MissingReturnTypeStaticMethod => &CheckCode::ANN205,
-            CheckKind::MissingReturnTypeClassMethod => &CheckCode::ANN206,
+            CheckKind::MissingTypeFunctionArgument(_) => &CheckCode::ANN001,
+            CheckKind::MissingTypeArgs(_) => &CheckCode::ANN002,
+            CheckKind::MissingTypeKwargs(_) => &CheckCode::ANN003,
+            CheckKind::MissingTypeSelf(_) => &CheckCode::ANN101,
+            CheckKind::MissingTypeCls(_) => &CheckCode::ANN102,
+            CheckKind::MissingReturnTypePublicFunction(_) => &CheckCode::ANN201,
+            CheckKind::MissingReturnTypePrivateFunction(_) => &CheckCode::ANN202,
+            CheckKind::MissingReturnTypeMagicMethod(_) => &CheckCode::ANN204,
+            CheckKind::MissingReturnTypeStaticMethod(_) => &CheckCode::ANN205,
+            CheckKind::MissingReturnTypeClassMethod(_) => &CheckCode::ANN206,
+            CheckKind::DynamicallyTypedExpression(_) => &CheckCode::ANN401,
+            // flake8-2020
+            CheckKind::SysVersionSlice3Referenced => &CheckCode::YTT101,
+            CheckKind::SysVersion2Referenced => &CheckCode::YTT102,
+            CheckKind::SysVersionCmpStr3 => &CheckCode::YTT103,
+            CheckKind::SysVersionInfo0Eq3Referenced => &CheckCode::YTT201,
+            CheckKind::SixPY3Referenced => &CheckCode::YTT202,
+            CheckKind::SysVersionInfo1CmpInt => &CheckCode::YTT203,
+            CheckKind::SysVersionInfoMinorCmpInt => &CheckCode::YTT204,
+            CheckKind::SysVersion0Referenced => &CheckCode::YTT301,
+            CheckKind::SysVersionCmpStr10 => &CheckCode::YTT302,
+            CheckKind::SysVersionSlice1Referenced => &CheckCode::YTT303,
             // pyupgrade
             CheckKind::TypeOfPrimitive(_) => &CheckCode::U003,
             CheckKind::UnnecessaryAbspath => &CheckCode::U002,
@@ -984,6 +1096,8 @@ impl CheckKind {
             CheckKind::UselessObjectInheritance(_) => &CheckCode::U004,
             CheckKind::SuperCallWithParameters => &CheckCode::U008,
             CheckKind::PEP3120UnnecessaryCodingComment => &CheckCode::U009,
+            CheckKind::UnnecessaryFutureImport(_) => &CheckCode::U010,
+            CheckKind::UnnecessaryLRUCacheParams => &CheckCode::U011,
             // pydocstyle
             CheckKind::BlankLineAfterLastSection(_) => &CheckCode::D413,
             CheckKind::BlankLineAfterSection(_) => &CheckCode::D410,
@@ -1045,9 +1159,12 @@ impl CheckKind {
             CheckKind::MixedCaseVariableInGlobalScope(..) => &CheckCode::N816,
             CheckKind::CamelcaseImportedAsAcronym(..) => &CheckCode::N817,
             CheckKind::ErrorSuffixOnExceptionName(..) => &CheckCode::N818,
+            // isort
+            CheckKind::UnsortedImports => &CheckCode::I001,
             // Ruff
             CheckKind::AmbiguousUnicodeCharacterString(..) => &CheckCode::RUF001,
             CheckKind::AmbiguousUnicodeCharacterDocstring(..) => &CheckCode::RUF002,
+            CheckKind::AmbiguousUnicodeCharacterComment(..) => &CheckCode::RUF003,
             // Meta
             CheckKind::UnusedNOQA(_) => &CheckCode::M001,
         }
@@ -1211,6 +1328,13 @@ impl CheckKind {
             CheckKind::AssignmentToOsEnviron => {
                 "Assigning to `os.environ` doesn't clear the environment.".to_string()
             }
+            CheckKind::UnreliableCallableCheck => " Using `hasattr(x, '__call__')` to test if x \
+                                                   is callable is unreliable. Use `callable(x)` \
+                                                   for consistent results."
+                .to_string(),
+            CheckKind::StripWithMultiCharacters => "Using `.strip()` with multi-character strings \
+                                                    is misleading the reader."
+                .to_string(),
             CheckKind::MutableArgumentDefault => {
                 "Do not use mutable data structures for argument defaults.".to_string()
             }
@@ -1221,6 +1345,14 @@ impl CheckKind {
             CheckKind::FunctionCallArgumentDefault => {
                 "Do not perform function calls in argument defaults.".to_string()
             }
+            CheckKind::GetAttrWithConstant => "Do not call `getattr` with a constant attribute \
+                                               value, it is not any safer than normal property \
+                                               access."
+                .to_string(),
+            CheckKind::SetAttrWithConstant => "Do not call `setattr` with a constant attribute \
+                                               value, it is not any safer than normal property \
+                                               access."
+                .to_string(),
             CheckKind::DoNotAssertFalse => "Do not `assert False` (`python -O` removes these \
                                             calls), raise `AssertionError()`"
                 .to_string(),
@@ -1259,6 +1391,13 @@ impl CheckKind {
             CheckKind::DuplicateTryBlockException(name) => {
                 format!("try-except block with duplicate exception `{name}`")
             }
+            CheckKind::StarArgUnpackingAfterKeywordArg => {
+                "Star-arg unpacking after a keyword argument is strongly discouraged, because it \
+                 only works when the keyword parameter is declared after all parameters supplied \
+                 by the unpacked sequence, and this change of ordering can surprise and mislead \
+                 readers."
+                    .to_string()
+            }
             // flake8-comprehensions
             CheckKind::UnnecessaryGeneratorList => {
                 "Unnecessary generator (rewrite as a `list` comprehension)".to_string()
@@ -1360,31 +1499,68 @@ impl CheckKind {
                 "Change outer quotes to avoid escaping inner quotes".to_string()
             }
             // flake8-annotations
-            CheckKind::MissingTypeFunctionArgument => {
-                "Missing type annotation for function argument".to_string()
+            CheckKind::MissingTypeFunctionArgument(name) => {
+                format!("Missing type annotation for function argument `{name}`")
             }
-            CheckKind::MissingTypeArgs => "Missing type annotation for `*args`".to_string(),
-            CheckKind::MissingTypeKwargs => "Missing type annotation for `**kwargs`".to_string(),
-            CheckKind::MissingTypeSelf => {
-                "Missing type annotation for `self` in method".to_string()
+            CheckKind::MissingTypeArgs(name) => format!("Missing type annotation for `*{name}`"),
+            CheckKind::MissingTypeKwargs(name) => {
+                format!("Missing type annotation for `**{name}`")
             }
-            CheckKind::MissingTypeCls => {
-                "Missing type annotation for `cls` in classmethod".to_string()
+            CheckKind::MissingTypeSelf(name) => {
+                format!("Missing type annotation for `{name}` in method")
             }
-            CheckKind::MissingReturnTypePublicFunction => {
-                "Missing return type annotation for public function".to_string()
+            CheckKind::MissingTypeCls(name) => {
+                format!("Missing type annotation for `{name}` in classmethod")
             }
-            CheckKind::MissingReturnTypePrivateFunction => {
-                "Missing return type annotation for private function".to_string()
+            CheckKind::MissingReturnTypePublicFunction(name) => {
+                format!("Missing return type annotation for public function `{name}`")
             }
-            CheckKind::MissingReturnTypeMagicMethod => {
-                "Missing return type annotation for magic method".to_string()
+            CheckKind::MissingReturnTypePrivateFunction(name) => {
+                format!("Missing return type annotation for private function `{name}`")
             }
-            CheckKind::MissingReturnTypeStaticMethod => {
-                "Missing return type annotation for staticmethod".to_string()
+            CheckKind::MissingReturnTypeMagicMethod(name) => {
+                format!("Missing return type annotation for magic method `{name}`")
             }
-            CheckKind::MissingReturnTypeClassMethod => {
-                "Missing return type annotation for classmethod".to_string()
+            CheckKind::MissingReturnTypeStaticMethod(name) => {
+                format!("Missing return type annotation for staticmethod `{name}`")
+            }
+            CheckKind::MissingReturnTypeClassMethod(name) => {
+                format!("Missing return type annotation for classmethod `{name}`")
+            }
+            CheckKind::DynamicallyTypedExpression(name) => {
+                format!("Dynamically typed expressions (typing.Any) are disallowed in `{name}`")
+            }
+            // flake8-2020
+            CheckKind::SysVersionSlice3Referenced => {
+                "`sys.version[:3]` referenced (python3.10), use `sys.version_info`".to_string()
+            }
+            CheckKind::SysVersion2Referenced => {
+                "`sys.version[2]` referenced (python3.10), use `sys.version_info`".to_string()
+            }
+            CheckKind::SysVersionCmpStr3 => {
+                "`sys.version` compared to string (python3.10), use `sys.version_info`".to_string()
+            }
+            CheckKind::SysVersionInfo0Eq3Referenced => {
+                "`sys.version_info[0] == 3` referenced (python4), use `>=`".to_string()
+            }
+            CheckKind::SixPY3Referenced => {
+                "`six.PY3` referenced (python4), use `not six.PY2`".to_string()
+            }
+            CheckKind::SysVersionInfo1CmpInt => "`sys.version_info[1]` compared to integer \
+                                                 (python4), compare `sys.version_info` to tuple"
+                .to_string(),
+            CheckKind::SysVersionInfoMinorCmpInt => "`sys.version_info.minor` compared to integer \
+                                                     (python4), compare `sys.version_info` to \
+                                                     tuple"
+                .to_string(),
+            CheckKind::SysVersion0Referenced => {
+                "`sys.version[0]` referenced (python10), use `sys.version_info`".to_string()
+            }
+            CheckKind::SysVersionCmpStr10 => {
+                "`sys.version` compared to string (python10), use `sys.version_info`".to_string()
+            }
+            CheckKind::SysVersionSlice1Referenced => {
+                "`sys.version[:1]` referenced (python10), use `sys.version_info`".to_string()
             }
             // pyupgrade
             CheckKind::TypeOfPrimitive(primitive) => {
@@ -1411,6 +1587,12 @@ impl CheckKind {
             CheckKind::SuperCallWithParameters => {
                 "Use `super()` instead of `super(__class__, self)`".to_string()
             }
+            CheckKind::UnnecessaryFutureImport(name) => {
+                format!("Unnessary __future__ import `{name}` for target Python version")
+            }
+            CheckKind::UnnecessaryLRUCacheParams => {
+                "Unnessary parameters to functools.lru_cache".to_string()
+            }
             // pydocstyle
             CheckKind::FitsOnOneLine => "One-line docstring should fit on one line".to_string(),
             CheckKind::BlankLineAfterSummary => {
@@ -1574,6 +1756,8 @@ impl CheckKind {
             CheckKind::PEP3120UnnecessaryCodingComment => {
                 "utf-8 encoding declaration is unnecessary".to_string()
             }
+            // isort
+            CheckKind::UnsortedImports => "Import block is un-sorted or un-formatted".to_string(),
             // Ruff
             CheckKind::AmbiguousUnicodeCharacterString(confusable, representant) => {
                 format!(
@@ -1587,6 +1771,12 @@ impl CheckKind {
                      '{representant}'?)"
                 )
             }
+            CheckKind::AmbiguousUnicodeCharacterComment(confusable, representant) => {
+                format!(
+                    "Comment contains ambiguous unicode character '{confusable}' (did you mean \
+                     '{representant}'?)"
+                )
+            }
             // Meta
             CheckKind::UnusedNOQA(codes) => match codes {
                 None => "Unused `noqa` directive".to_string(),
@@ -1620,6 +1810,9 @@ impl CheckKind {
             CheckKind::NoAssertRaisesException => {
                 "`assertRaises(Exception):` should be considered evil.".to_string()
             }
+            CheckKind::StarArgUnpackingAfterKeywordArg => {
+                "Star-arg unpacking after a keyword argument is strongly discouraged.".to_string()
+            }
             _ => self.body(),
         }
     }
@@ -1639,6 +1832,8 @@ impl CheckKind {
                 | CheckKind::DeprecatedUnittestAlias(_, _)
                 | CheckKind::DoNotAssertFalse
                 | CheckKind::DuplicateHandlerException(_)
+                | CheckKind::GetAttrWithConstant
+                | CheckKind::IsLiteral
                 | CheckKind::NewLineAfterLastParagraph
                 | CheckKind::NewLineAfterSectionName(_)
                 | CheckKind::NoBlankLineAfterFunction(_)
@@ -1650,6 +1845,7 @@ impl CheckKind {
                 | CheckKind::NoUnderIndentation
                 | CheckKind::OneBlankLineAfterClass(_)
                 | CheckKind::OneBlankLineBeforeClass(_)
+                | CheckKind::PEP3120UnnecessaryCodingComment
                 | CheckKind::PPrintFound
                 | CheckKind::PrintFound
                 | CheckKind::RaiseNotImplemented
@@ -1666,12 +1862,15 @@ impl CheckKind {
                 | CheckKind::UnnecessaryGeneratorDict
                 | CheckKind::UnnecessaryGeneratorList
                 | CheckKind::UnnecessaryGeneratorSet
+                | CheckKind::UnnecessaryLRUCacheParams
                 | CheckKind::UnnecessaryListCall
+                | CheckKind::UnnecessaryListComprehensionDict
                 | CheckKind::UnnecessaryListComprehensionSet
                 | CheckKind::UnnecessaryLiteralDict(_)
                 | CheckKind::UnnecessaryLiteralSet(_)
                 | CheckKind::UnnecessaryLiteralWithinListCall(_)
                 | CheckKind::UnnecessaryLiteralWithinTupleCall(_)
+                | CheckKind::UnsortedImports
                 | CheckKind::UnusedImport(_, false)
                 | CheckKind::UnusedLoopControlVariable(_)
                 | CheckKind::UnusedNOQA(_)
@@ -1679,8 +1878,6 @@ impl CheckKind {
                 | CheckKind::UsePEP604Annotation
                 | CheckKind::UselessMetaclassType
                 | CheckKind::UselessObjectInheritance(_)
-                | CheckKind::PEP3120UnnecessaryCodingComment
-                | CheckKind::IsLiteral
         )
     }
 }

src/checks_gen.rs

@@ -30,15 +30,22 @@ pub enum CheckCodePrefix {
     ANN204,
     ANN205,
     ANN206,
+    ANN4,
+    ANN40,
+    ANN401,
     B,
     B0,
     B00,
     B002,
     B003,
+    B004,
+    B005,
     B006,
     B007,
     B008,
+    B009,
     B01,
+    B010,
     B011,
     B013,
     B014,
@@ -48,6 +55,7 @@ pub enum CheckCodePrefix {
     B018,
     B02,
     B025,
+    B026,
     C,
     C4,
     C40,
@@ -196,6 +204,10 @@ pub enum CheckCodePrefix {
     F9,
     F90,
     F901,
+    I,
+    I0,
+    I00,
+    I001,
     M,
     M0,
     M00,
@@ -231,6 +243,7 @@ pub enum CheckCodePrefix {
     RUF00,
     RUF001,
     RUF002,
+    RUF003,
     T,
     T2,
     T20,
@@ -248,6 +261,9 @@ pub enum CheckCodePrefix {
     U007,
     U008,
     U009,
+    U01,
+    U010,
+    U011,
     W,
     W2,
     W29,
@@ -255,6 +271,23 @@ pub enum CheckCodePrefix {
     W6,
     W60,
     W605,
+    YTT,
+    YTT1,
+    YTT10,
+    YTT101,
+    YTT102,
+    YTT103,
+    YTT2,
+    YTT20,
+    YTT201,
+    YTT202,
+    YTT203,
+    YTT204,
+    YTT3,
+    YTT30,
+    YTT301,
+    YTT302,
+    YTT303,
 }
 
 #[derive(PartialEq, Eq, PartialOrd, Ord)]
@@ -285,6 +318,7 @@ impl CheckCodePrefix {
                 CheckCode::ANN204,
                 CheckCode::ANN205,
                 CheckCode::ANN206,
+                CheckCode::ANN401,
             ],
             CheckCodePrefix::ANN0 => vec![CheckCode::ANN001, CheckCode::ANN002, CheckCode::ANN003],
             CheckCodePrefix::ANN00 => vec![CheckCode::ANN001, CheckCode::ANN002, CheckCode::ANN003],
@@ -314,12 +348,19 @@ impl CheckCodePrefix {
             CheckCodePrefix::ANN204 => vec![CheckCode::ANN204],
             CheckCodePrefix::ANN205 => vec![CheckCode::ANN205],
             CheckCodePrefix::ANN206 => vec![CheckCode::ANN206],
+            CheckCodePrefix::ANN4 => vec![CheckCode::ANN401],
+            CheckCodePrefix::ANN40 => vec![CheckCode::ANN401],
+            CheckCodePrefix::ANN401 => vec![CheckCode::ANN401],
             CheckCodePrefix::B => vec![
                 CheckCode::B002,
                 CheckCode::B003,
+                CheckCode::B004,
+                CheckCode::B005,
                 CheckCode::B006,
                 CheckCode::B007,
                 CheckCode::B008,
+                CheckCode::B009,
+                CheckCode::B010,
                 CheckCode::B011,
                 CheckCode::B013,
                 CheckCode::B014,
@@ -328,13 +369,18 @@ impl CheckCodePrefix {
                 CheckCode::B017,
                 CheckCode::B018,
                 CheckCode::B025,
+                CheckCode::B026,
             ],
             CheckCodePrefix::B0 => vec![
                 CheckCode::B002,
                 CheckCode::B003,
+                CheckCode::B004,
+                CheckCode::B005,
                 CheckCode::B006,
                 CheckCode::B007,
                 CheckCode::B008,
+                CheckCode::B009,
+                CheckCode::B010,
                 CheckCode::B011,
                 CheckCode::B013,
                 CheckCode::B014,
@@ -343,20 +389,28 @@ impl CheckCodePrefix {
                 CheckCode::B017,
                 CheckCode::B018,
                 CheckCode::B025,
+                CheckCode::B026,
             ],
             CheckCodePrefix::B00 => vec![
                 CheckCode::B002,
                 CheckCode::B003,
+                CheckCode::B004,
+                CheckCode::B005,
                 CheckCode::B006,
                 CheckCode::B007,
                 CheckCode::B008,
+                CheckCode::B009,
             ],
             CheckCodePrefix::B002 => vec![CheckCode::B002],
             CheckCodePrefix::B003 => vec![CheckCode::B003],
+            CheckCodePrefix::B004 => vec![CheckCode::B004],
+            CheckCodePrefix::B005 => vec![CheckCode::B005],
             CheckCodePrefix::B006 => vec![CheckCode::B006],
             CheckCodePrefix::B007 => vec![CheckCode::B007],
             CheckCodePrefix::B008 => vec![CheckCode::B008],
+            CheckCodePrefix::B009 => vec![CheckCode::B009],
             CheckCodePrefix::B01 => vec![
+                CheckCode::B010,
                 CheckCode::B011,
                 CheckCode::B013,
                 CheckCode::B014,
@@ -365,6 +419,7 @@ impl CheckCodePrefix {
                 CheckCode::B017,
                 CheckCode::B018,
             ],
+            CheckCodePrefix::B010 => vec![CheckCode::B010],
             CheckCodePrefix::B011 => vec![CheckCode::B011],
             CheckCodePrefix::B013 => vec![CheckCode::B013],
             CheckCodePrefix::B014 => vec![CheckCode::B014],
@@ -372,8 +427,9 @@ impl CheckCodePrefix {
             CheckCodePrefix::B016 => vec![CheckCode::B016],
             CheckCodePrefix::B017 => vec![CheckCode::B017],
             CheckCodePrefix::B018 => vec![CheckCode::B018],
-            CheckCodePrefix::B02 => vec![CheckCode::B025],
+            CheckCodePrefix::B02 => vec![CheckCode::B025, CheckCode::B026],
             CheckCodePrefix::B025 => vec![CheckCode::B025],
+            CheckCodePrefix::B026 => vec![CheckCode::B026],
             CheckCodePrefix::C => vec![
                 CheckCode::C400,
                 CheckCode::C401,
@@ -822,6 +878,10 @@ impl CheckCodePrefix {
             CheckCodePrefix::F9 => vec![CheckCode::F901],
             CheckCodePrefix::F90 => vec![CheckCode::F901],
             CheckCodePrefix::F901 => vec![CheckCode::F901],
+            CheckCodePrefix::I => vec![CheckCode::I001],
+            CheckCodePrefix::I0 => vec![CheckCode::I001],
+            CheckCodePrefix::I00 => vec![CheckCode::I001],
+            CheckCodePrefix::I001 => vec![CheckCode::I001],
             CheckCodePrefix::M => vec![CheckCode::M001],
             CheckCodePrefix::M0 => vec![CheckCode::M001],
             CheckCodePrefix::M00 => vec![CheckCode::M001],
@@ -916,11 +976,12 @@ impl CheckCodePrefix {
             CheckCodePrefix::Q001 => vec![CheckCode::Q001],
             CheckCodePrefix::Q002 => vec![CheckCode::Q002],
             CheckCodePrefix::Q003 => vec![CheckCode::Q003],
-            CheckCodePrefix::RUF => vec![CheckCode::RUF001, CheckCode::RUF002],
-            CheckCodePrefix::RUF0 => vec![CheckCode::RUF001, CheckCode::RUF002],
-            CheckCodePrefix::RUF00 => vec![CheckCode::RUF001, CheckCode::RUF002],
+            CheckCodePrefix::RUF => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
+            CheckCodePrefix::RUF0 => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
+            CheckCodePrefix::RUF00 => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
             CheckCodePrefix::RUF001 => vec![CheckCode::RUF001],
             CheckCodePrefix::RUF002 => vec![CheckCode::RUF002],
+            CheckCodePrefix::RUF003 => vec![CheckCode::RUF003],
             CheckCodePrefix::T => vec![CheckCode::T201, CheckCode::T203],
             CheckCodePrefix::T2 => vec![CheckCode::T201, CheckCode::T203],
             CheckCodePrefix::T20 => vec![CheckCode::T201, CheckCode::T203],
@@ -936,6 +997,8 @@ impl CheckCodePrefix {
                 CheckCode::U007,
                 CheckCode::U008,
                 CheckCode::U009,
+                CheckCode::U010,
+                CheckCode::U011,
             ],
             CheckCodePrefix::U0 => vec![
                 CheckCode::U001,
@@ -947,6 +1010,8 @@ impl CheckCodePrefix {
                 CheckCode::U007,
                 CheckCode::U008,
                 CheckCode::U009,
+                CheckCode::U010,
+                CheckCode::U011,
             ],
             CheckCodePrefix::U00 => vec![
                 CheckCode::U001,
@@ -968,6 +1033,9 @@ impl CheckCodePrefix {
             CheckCodePrefix::U007 => vec![CheckCode::U007],
             CheckCodePrefix::U008 => vec![CheckCode::U008],
             CheckCodePrefix::U009 => vec![CheckCode::U009],
+            CheckCodePrefix::U01 => vec![CheckCode::U010, CheckCode::U011],
+            CheckCodePrefix::U010 => vec![CheckCode::U010],
+            CheckCodePrefix::U011 => vec![CheckCode::U011],
             CheckCodePrefix::W => vec![CheckCode::W292, CheckCode::W605],
             CheckCodePrefix::W2 => vec![CheckCode::W292],
             CheckCodePrefix::W29 => vec![CheckCode::W292],
@@ -975,6 +1043,44 @@ impl CheckCodePrefix {
             CheckCodePrefix::W6 => vec![CheckCode::W605],
             CheckCodePrefix::W60 => vec![CheckCode::W605],
             CheckCodePrefix::W605 => vec![CheckCode::W605],
+            CheckCodePrefix::YTT => vec![
+                CheckCode::YTT101,
+                CheckCode::YTT102,
+                CheckCode::YTT103,
+                CheckCode::YTT201,
+                CheckCode::YTT202,
+                CheckCode::YTT203,
+                CheckCode::YTT204,
+                CheckCode::YTT301,
+                CheckCode::YTT302,
+                CheckCode::YTT303,
+            ],
+            CheckCodePrefix::YTT1 => vec![CheckCode::YTT101, CheckCode::YTT102, CheckCode::YTT103],
+            CheckCodePrefix::YTT10 => vec![CheckCode::YTT101, CheckCode::YTT102, CheckCode::YTT103],
+            CheckCodePrefix::YTT101 => vec![CheckCode::YTT101],
+            CheckCodePrefix::YTT102 => vec![CheckCode::YTT102],
+            CheckCodePrefix::YTT103 => vec![CheckCode::YTT103],
+            CheckCodePrefix::YTT2 => vec![
+                CheckCode::YTT201,
+                CheckCode::YTT202,
+                CheckCode::YTT203,
+                CheckCode::YTT204,
+            ],
+            CheckCodePrefix::YTT20 => vec![
+                CheckCode::YTT201,
+                CheckCode::YTT202,
+                CheckCode::YTT203,
+                CheckCode::YTT204,
+            ],
+            CheckCodePrefix::YTT201 => vec![CheckCode::YTT201],
+            CheckCodePrefix::YTT202 => vec![CheckCode::YTT202],
+            CheckCodePrefix::YTT203 => vec![CheckCode::YTT203],
+            CheckCodePrefix::YTT204 => vec![CheckCode::YTT204],
+            CheckCodePrefix::YTT3 => vec![CheckCode::YTT301, CheckCode::YTT302, CheckCode::YTT303],
+            CheckCodePrefix::YTT30 => vec![CheckCode::YTT301, CheckCode::YTT302, CheckCode::YTT303],
+            CheckCodePrefix::YTT301 => vec![CheckCode::YTT301],
+            CheckCodePrefix::YTT302 => vec![CheckCode::YTT302],
+            CheckCodePrefix::YTT303 => vec![CheckCode::YTT303],
         }
     }
 }
@@ -1005,15 +1111,22 @@ impl CheckCodePrefix {
             CheckCodePrefix::ANN204 => PrefixSpecificity::Explicit,
             CheckCodePrefix::ANN205 => PrefixSpecificity::Explicit,
             CheckCodePrefix::ANN206 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::ANN4 => PrefixSpecificity::Hundreds,
+            CheckCodePrefix::ANN40 => PrefixSpecificity::Tens,
+            CheckCodePrefix::ANN401 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B => PrefixSpecificity::Category,
             CheckCodePrefix::B0 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::B00 => PrefixSpecificity::Tens,
             CheckCodePrefix::B002 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B003 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::B004 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::B005 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B006 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B007 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B008 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::B009 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B01 => PrefixSpecificity::Tens,
+            CheckCodePrefix::B010 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B011 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B013 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B014 => PrefixSpecificity::Explicit,
@@ -1023,6 +1136,7 @@ impl CheckCodePrefix {
             CheckCodePrefix::B018 => PrefixSpecificity::Explicit,
             CheckCodePrefix::B02 => PrefixSpecificity::Tens,
             CheckCodePrefix::B025 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::B026 => PrefixSpecificity::Explicit,
             CheckCodePrefix::C => PrefixSpecificity::Category,
             CheckCodePrefix::C4 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::C40 => PrefixSpecificity::Tens,
@@ -1171,6 +1285,10 @@ impl CheckCodePrefix {
             CheckCodePrefix::F9 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::F90 => PrefixSpecificity::Tens,
             CheckCodePrefix::F901 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::I => PrefixSpecificity::Category,
+            CheckCodePrefix::I0 => PrefixSpecificity::Hundreds,
+            CheckCodePrefix::I00 => PrefixSpecificity::Tens,
+            CheckCodePrefix::I001 => PrefixSpecificity::Explicit,
             CheckCodePrefix::M => PrefixSpecificity::Category,
             CheckCodePrefix::M0 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::M00 => PrefixSpecificity::Tens,
@@ -1206,6 +1324,7 @@ impl CheckCodePrefix {
             CheckCodePrefix::RUF00 => PrefixSpecificity::Tens,
             CheckCodePrefix::RUF001 => PrefixSpecificity::Explicit,
             CheckCodePrefix::RUF002 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::RUF003 => PrefixSpecificity::Explicit,
             CheckCodePrefix::T => PrefixSpecificity::Category,
             CheckCodePrefix::T2 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::T20 => PrefixSpecificity::Tens,
@@ -1223,6 +1342,9 @@ impl CheckCodePrefix {
             CheckCodePrefix::U007 => PrefixSpecificity::Explicit,
             CheckCodePrefix::U008 => PrefixSpecificity::Explicit,
             CheckCodePrefix::U009 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::U01 => PrefixSpecificity::Tens,
+            CheckCodePrefix::U010 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::U011 => PrefixSpecificity::Explicit,
             CheckCodePrefix::W => PrefixSpecificity::Category,
             CheckCodePrefix::W2 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::W29 => PrefixSpecificity::Tens,
@@ -1230,6 +1352,23 @@ impl CheckCodePrefix {
             CheckCodePrefix::W6 => PrefixSpecificity::Hundreds,
             CheckCodePrefix::W60 => PrefixSpecificity::Tens,
             CheckCodePrefix::W605 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT => PrefixSpecificity::Category,
+            CheckCodePrefix::YTT1 => PrefixSpecificity::Hundreds,
+            CheckCodePrefix::YTT10 => PrefixSpecificity::Tens,
+            CheckCodePrefix::YTT101 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT102 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT103 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT2 => PrefixSpecificity::Hundreds,
+            CheckCodePrefix::YTT20 => PrefixSpecificity::Tens,
+            CheckCodePrefix::YTT201 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT202 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT203 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT204 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT3 => PrefixSpecificity::Hundreds,
+            CheckCodePrefix::YTT30 => PrefixSpecificity::Tens,
+            CheckCodePrefix::YTT301 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT302 => PrefixSpecificity::Explicit,
+            CheckCodePrefix::YTT303 => PrefixSpecificity::Explicit,
         }
     }
 }

src/cli.rs

@@ -38,8 +38,10 @@ pub struct Cli {
     #[arg(short, long)]
     pub watch: bool,
     /// Attempt to automatically fix lint errors.
-    #[arg(short, long)]
-    pub fix: bool,
+    #[arg(long, overrides_with("no_fix"))]
+    fix: bool,
+    #[clap(long, overrides_with("fix"), hide = true)]
+    no_fix: bool,
     /// Disable cache reads.
     #[arg(short, long)]
     pub no_cache: bool,
@@ -94,6 +96,22 @@ pub struct Cli {
     pub stdin_filename: Option<String>,
 }
 
+impl Cli {
+    // See: https://github.com/clap-rs/clap/issues/3146
+    pub fn fix(&self) -> Option<bool> {
+        resolve_bool_arg(self.fix, self.no_fix)
+    }
+}
+
+fn resolve_bool_arg(yes: bool, no: bool) -> Option<bool> {
+    match (yes, no) {
+        (true, false) => Some(true),
+        (false, true) => Some(false),
+        (false, false) => None,
+        (..) => unreachable!("Clap should make this impossible"),
+    }
+}
+
 /// Map the CLI settings to a `LogLevel`.
 pub fn extract_log_level(cli: &Cli) -> LogLevel {
     if cli.silent {
@@ -165,7 +183,7 @@ pub fn warn_on(
     }
 }
 
-/// Collect a list of `PatternPrefixPair` structs as a `BTreeMap`.
+/// Convert a list of `PatternPrefixPair` structs to `PerFileIgnore`.
 pub fn collect_per_file_ignores(
     pairs: Vec<PatternPrefixPair>,
     project_root: &Option<PathBuf>,

src/directives.rs

@@ -0,0 +1,206 @@
+//! Extract `# noqa` and `# isort: skip` directives from tokenized source.
+
+use bitflags::bitflags;
+use nohash_hasher::{IntMap, IntSet};
+use rustpython_ast::Location;
+use rustpython_parser::lexer::{LexResult, Tok};
+
+use crate::ast::types::Range;
+use crate::checks::LintSource;
+use crate::{Settings, SourceCodeLocator};
+
+bitflags! {
+    pub struct Flags: u32 {
+        const NOQA = 0b00000001;
+        const ISORT = 0b00000010;
+    }
+}
+
+impl Flags {
+    pub fn from_settings(settings: &Settings) -> Self {
+        if settings
+            .enabled
+            .iter()
+            .any(|check_code| matches!(check_code.lint_source(), LintSource::Imports))
+        {
+            Flags::NOQA | Flags::ISORT
+        } else {
+            Flags::NOQA
+        }
+    }
+}
+
+pub struct Directives {
+    pub noqa_line_for: IntMap<usize, usize>,
+    pub isort_exclusions: IntSet<usize>,
+}
+
+pub fn extract_directives(
+    lxr: &[LexResult],
+    locator: &SourceCodeLocator,
+    flags: &Flags,
+) -> Directives {
+    Directives {
+        noqa_line_for: if flags.contains(Flags::NOQA) {
+            extract_noqa_line_for(lxr)
+        } else {
+            Default::default()
+        },
+        isort_exclusions: if flags.contains(Flags::ISORT) {
+            extract_isort_exclusions(lxr, locator)
+        } else {
+            Default::default()
+        },
+    }
+}
+
+/// Extract a mapping from logical line to noqa line.
+pub fn extract_noqa_line_for(lxr: &[LexResult]) -> IntMap<usize, usize> {
+    let mut noqa_line_for: IntMap<usize, usize> = IntMap::default();
+    for (start, tok, end) in lxr.iter().flatten() {
+        if matches!(tok, Tok::EndOfFile) {
+            break;
+        }
+        // For multi-line strings, we expect `noqa` directives on the last line of the
+        // string.
+        if matches!(tok, Tok::String { .. }) && end.row() > start.row() {
+            for i in start.row()..end.row() {
+                noqa_line_for.insert(i, end.row());
+            }
+        }
+    }
+    noqa_line_for
+}
+
+/// Extract a set of lines over which to disable isort.
+pub fn extract_isort_exclusions(lxr: &[LexResult], locator: &SourceCodeLocator) -> IntSet<usize> {
+    let mut exclusions: IntSet<usize> = IntSet::default();
+    let mut off: Option<&Location> = None;
+    for (start, tok, end) in lxr.iter().flatten() {
+        // TODO(charlie): Modify RustPython to include the comment text in the token.
+        if matches!(tok, Tok::Comment) {
+            let comment_text = locator.slice_source_code_range(&Range {
+                location: *start,
+                end_location: *end,
+            });
+            if off.is_some() {
+                if comment_text == "# isort: on" {
+                    if let Some(start) = off {
+                        for row in start.row() + 1..=end.row() {
+                            exclusions.insert(row);
+                        }
+                    }
+                    off = None;
+                }
+            } else {
+                if comment_text.contains("isort: skip") || comment_text.contains("isort:skip") {
+                    exclusions.insert(start.row());
+                } else if comment_text == "# isort: off" {
+                    off = Some(start);
+                }
+            }
+        } else if matches!(tok, Tok::EndOfFile) {
+            if let Some(start) = off {
+                for row in start.row() + 1..=end.row() {
+                    exclusions.insert(row);
+                }
+            }
+            break;
+        }
+    }
+    exclusions
+}
+
+#[cfg(test)]
+mod tests {
+    use anyhow::Result;
+    use nohash_hasher::IntMap;
+    use rustpython_parser::lexer;
+    use rustpython_parser::lexer::LexResult;
+
+    use crate::directives::extract_noqa_line_for;
+
+    #[test]
+    fn extraction() -> Result<()> {
+        let empty: IntMap<usize, usize> = Default::default();
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = 1
+y = 2
+z = x + 1",
+        )
+        .collect();
+        assert_eq!(extract_noqa_line_for(&lxr), empty);
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "
+x = 1
+y = 2
+z = x + 1",
+        )
+        .collect();
+        assert_eq!(extract_noqa_line_for(&lxr), empty);
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = 1
+y = 2
+z = x + 1
+        ",
+        )
+        .collect();
+        assert_eq!(extract_noqa_line_for(&lxr), empty);
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = 1
+
+y = 2
+z = x + 1
+        ",
+        )
+        .collect();
+        assert_eq!(extract_noqa_line_for(&lxr), empty);
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = '''abc
+def
+ghi
+'''
+y = 2
+z = x + 1",
+        )
+        .collect();
+        assert_eq!(
+            extract_noqa_line_for(&lxr),
+            IntMap::from_iter([(1, 4), (2, 4), (3, 4)])
+        );
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = 1
+        y = '''abc
+        def
+        ghi
+        '''
+        z = 2",
+        )
+        .collect();
+        assert_eq!(
+            extract_noqa_line_for(&lxr),
+            IntMap::from_iter([(2, 5), (3, 5), (4, 5)])
+        );
+
+        let lxr: Vec<LexResult> = lexer::make_tokenizer(
+            "x = 1
+        y = '''abc
+        def
+        ghi
+        '''",
+        )
+        .collect();
+        assert_eq!(
+            extract_noqa_line_for(&lxr),
+            IntMap::from_iter([(2, 5), (3, 5), (4, 5)])
+        );
+
+        Ok(())
+    }
+}

src/docstrings/helpers.rs

@@ -1,4 +1,4 @@
-use rustpython_ast::{Expr, Location};
+use rustpython_ast::{Located, Location};
 
 use crate::ast::types::Range;
 use crate::check_ast::Checker;
@@ -24,9 +24,9 @@ pub fn leading_space(line: &str) -> String {
         .collect()
 }
 
-/// Extract the leading indentation from a docstring.
-pub fn indentation<'a>(checker: &'a Checker, docstring: &Expr) -> String {
-    let range = Range::from_located(docstring);
+/// Extract the leading indentation from a line.
+pub fn indentation<'a, T>(checker: &'a Checker, located: &Located<T>) -> String {
+    let range = Range::from_located(located);
     checker
         .locator
         .slice_source_code_range(&Range {

src/flake8_2020/mod.rs

@@ -0,0 +1 @@
+pub mod plugins;

src/flake8_2020/plugins.rs

@@ -0,0 +1,192 @@
+use num_bigint::BigInt;
+use rustpython_ast::{Cmpop, Constant, Expr, ExprKind, Located};
+
+use crate::ast::helpers::match_name_or_attr_from_module;
+use crate::ast::types::Range;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckCode, CheckKind};
+
+fn is_sys(checker: &Checker, expr: &Expr, target: &str) -> bool {
+    match_name_or_attr_from_module(expr, target, "sys", checker.from_imports.get("sys"))
+}
+
+/// YTT101, YTT102, YTT301, YTT303
+pub fn subscript(checker: &mut Checker, value: &Expr, slice: &Expr) {
+    if is_sys(checker, value, "version") {
+        match &slice.node {
+            ExprKind::Slice {
+                lower: None,
+                upper: Some(upper),
+                step: None,
+                ..
+            } => {
+                if let ExprKind::Constant {
+                    value: Constant::Int(i),
+                    ..
+                } = &upper.node
+                {
+                    if *i == BigInt::from(1)
+                        && checker.settings.enabled.contains(&CheckCode::YTT303)
+                    {
+                        checker.add_check(Check::new(
+                            CheckKind::SysVersionSlice1Referenced,
+                            Range::from_located(value),
+                        ));
+                    } else if *i == BigInt::from(3)
+                        && checker.settings.enabled.contains(&CheckCode::YTT101)
+                    {
+                        checker.add_check(Check::new(
+                            CheckKind::SysVersionSlice3Referenced,
+                            Range::from_located(value),
+                        ));
+                    }
+                }
+            }
+
+            ExprKind::Constant {
+                value: Constant::Int(i),
+                ..
+            } => {
+                if *i == BigInt::from(2) && checker.settings.enabled.contains(&CheckCode::YTT102) {
+                    checker.add_check(Check::new(
+                        CheckKind::SysVersion2Referenced,
+                        Range::from_located(value),
+                    ));
+                } else if *i == BigInt::from(0)
+                    && checker.settings.enabled.contains(&CheckCode::YTT301)
+                {
+                    checker.add_check(Check::new(
+                        CheckKind::SysVersion0Referenced,
+                        Range::from_located(value),
+                    ));
+                }
+            }
+
+            _ => {}
+        }
+    }
+}
+
+/// YTT103, YTT201, YTT203, YTT204, YTT302
+pub fn compare(checker: &mut Checker, left: &Expr, ops: &[Cmpop], comparators: &[Expr]) {
+    match &left.node {
+        ExprKind::Subscript { value, slice, .. } if is_sys(checker, value, "version_info") => {
+            if let ExprKind::Constant {
+                value: Constant::Int(i),
+                ..
+            } = &slice.node
+            {
+                if *i == BigInt::from(0) {
+                    if let (
+                        [Cmpop::Eq | Cmpop::NotEq],
+                        [Located {
+                            node:
+                                ExprKind::Constant {
+                                    value: Constant::Int(n),
+                                    ..
+                                },
+                            ..
+                        }],
+                    ) = (ops, comparators)
+                    {
+                        if *n == BigInt::from(3)
+                            && checker.settings.enabled.contains(&CheckCode::YTT201)
+                        {
+                            checker.add_check(Check::new(
+                                CheckKind::SysVersionInfo0Eq3Referenced,
+                                Range::from_located(left),
+                            ));
+                        }
+                    }
+                } else if *i == BigInt::from(1) {
+                    if let (
+                        [Cmpop::Lt | Cmpop::LtE | Cmpop::Gt | Cmpop::GtE],
+                        [Located {
+                            node:
+                                ExprKind::Constant {
+                                    value: Constant::Int(_),
+                                    ..
+                                },
+                            ..
+                        }],
+                    ) = (ops, comparators)
+                    {
+                        if checker.settings.enabled.contains(&CheckCode::YTT203) {
+                            checker.add_check(Check::new(
+                                CheckKind::SysVersionInfo1CmpInt,
+                                Range::from_located(left),
+                            ));
+                        }
+                    }
+                }
+            }
+        }
+
+        ExprKind::Attribute { value, attr, .. }
+            if is_sys(checker, value, "version_info") && attr == "minor" =>
+        {
+            if let (
+                [Cmpop::Lt | Cmpop::LtE | Cmpop::Gt | Cmpop::GtE],
+                [Located {
+                    node:
+                        ExprKind::Constant {
+                            value: Constant::Int(_),
+                            ..
+                        },
+                    ..
+                }],
+            ) = (ops, comparators)
+            {
+                if checker.settings.enabled.contains(&CheckCode::YTT204) {
+                    checker.add_check(Check::new(
+                        CheckKind::SysVersionInfoMinorCmpInt,
+                        Range::from_located(left),
+                    ));
+                }
+            }
+        }
+
+        _ => {}
+    }
+
+    if is_sys(checker, left, "version") {
+        if let (
+            [Cmpop::Lt | Cmpop::LtE | Cmpop::Gt | Cmpop::GtE],
+            [Located {
+                node:
+                    ExprKind::Constant {
+                        value: Constant::Str(s),
+                        ..
+                    },
+                ..
+            }],
+        ) = (ops, comparators)
+        {
+            if s.len() == 1 {
+                if checker.settings.enabled.contains(&CheckCode::YTT302) {
+                    checker.add_check(Check::new(
+                        CheckKind::SysVersionCmpStr10,
+                        Range::from_located(left),
+                    ));
+                }
+            } else if checker.settings.enabled.contains(&CheckCode::YTT103) {
+                checker.add_check(Check::new(
+                    CheckKind::SysVersionCmpStr3,
+                    Range::from_located(left),
+                ));
+            }
+        }
+    }
+}
+
+/// YTT202
+pub fn name_or_attribute(checker: &mut Checker, expr: &Expr) {
+    if match_name_or_attr_from_module(expr, "PY3", "six", checker.from_imports.get("six"))
+        && checker.settings.enabled.contains(&CheckCode::YTT202)
+    {
+        checker.add_check(Check::new(
+            CheckKind::SixPY3Referenced,
+            Range::from_located(expr),
+        ));
+    }
+}

src/flake8_annotations/mod.rs

@@ -6,32 +6,15 @@ mod tests {
     use std::path::Path;
 
     use anyhow::Result;
-    use rustpython_parser::lexer::LexResult;
 
     use crate::autofix::fixer;
-    use crate::checks::{Check, CheckCode};
-    use crate::linter::tokenize;
-    use crate::{flake8_annotations, fs, linter, noqa, Settings, SourceCodeLocator};
-
-    fn check_path(path: &Path, settings: &Settings, autofix: &fixer::Mode) -> Result<Vec<Check>> {
-        let contents = fs::read_file(path)?;
-        let tokens: Vec<LexResult> = tokenize(&contents);
-        let locator = SourceCodeLocator::new(&contents);
-        let noqa_line_for = noqa::extract_noqa_line_for(&tokens);
-        linter::check_path(
-            path,
-            &contents,
-            tokens,
-            &locator,
-            &noqa_line_for,
-            settings,
-            autofix,
-        )
-    }
+    use crate::checks::CheckCode;
+    use crate::linter::test_path;
+    use crate::{flake8_annotations, Settings};
 
     #[test]
     fn defaults() -> Result<()> {
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_annotations/annotation_presence.py"),
             &Settings {
                 ..Settings::for_rules(vec![
@@ -45,6 +28,7 @@ mod tests {
                     CheckCode::ANN204,
                     CheckCode::ANN205,
                     CheckCode::ANN206,
+                    CheckCode::ANN401,
                 ])
             },
             &fixer::Mode::Generate,
@@ -56,13 +40,14 @@ mod tests {
 
     #[test]
     fn suppress_dummy_args() -> Result<()> {
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_annotations/suppress_dummy_args.py"),
             &Settings {
                 flake8_annotations: flake8_annotations::settings::Settings {
                     mypy_init_return: false,
                     suppress_dummy_args: true,
                     suppress_none_returning: false,
+                    allow_star_arg_any: false,
                 },
                 ..Settings::for_rules(vec![
                     CheckCode::ANN001,
@@ -81,13 +66,14 @@ mod tests {
 
     #[test]
     fn mypy_init_return() -> Result<()> {
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_annotations/mypy_init_return.py"),
             &Settings {
                 flake8_annotations: flake8_annotations::settings::Settings {
                     mypy_init_return: true,
                     suppress_dummy_args: false,
                     suppress_none_returning: false,
+                    allow_star_arg_any: false,
                 },
                 ..Settings::for_rules(vec![
                     CheckCode::ANN201,
@@ -106,13 +92,14 @@ mod tests {
 
     #[test]
     fn suppress_none_returning() -> Result<()> {
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_annotations/suppress_none_returning.py"),
             &Settings {
                 flake8_annotations: flake8_annotations::settings::Settings {
                     mypy_init_return: false,
                     suppress_dummy_args: false,
                     suppress_none_returning: true,
+                    allow_star_arg_any: false,
                 },
                 ..Settings::for_rules(vec![
                     CheckCode::ANN201,
@@ -128,4 +115,24 @@ mod tests {
         insta::assert_yaml_snapshot!(checks);
         Ok(())
     }
+
+    #[test]
+    fn allow_star_arg_any() -> Result<()> {
+        let mut checks = test_path(
+            Path::new("./resources/test/fixtures/flake8_annotations/allow_star_arg_any.py"),
+            &Settings {
+                flake8_annotations: flake8_annotations::settings::Settings {
+                    mypy_init_return: false,
+                    suppress_dummy_args: false,
+                    suppress_none_returning: false,
+                    allow_star_arg_any: true,
+                },
+                ..Settings::for_rules(vec![CheckCode::ANN401])
+            },
+            &fixer::Mode::Generate,
+        )?;
+        checks.sort_by_key(|check| check.location);
+        insta::assert_yaml_snapshot!(checks);
+        Ok(())
+    }
 }

src/flake8_annotations/plugins.rs

@@ -29,9 +29,9 @@ where
     }
 }
 
-fn is_none_returning(stmt: &Stmt) -> bool {
+fn is_none_returning(body: &[Stmt]) -> bool {
     let mut visitor: ReturnStatementVisitor = Default::default();
-    for stmt in match_body(stmt) {
+    for stmt in body {
         visitor.visit_stmt(stmt);
     }
     for expr in visitor.returns.into_iter().flatten() {
@@ -48,54 +48,67 @@ fn is_none_returning(stmt: &Stmt) -> bool {
     true
 }
 
-fn match_args(stmt: &Stmt) -> &Arguments {
-    match &stmt.node {
-        StmtKind::FunctionDef { args, .. } | StmtKind::AsyncFunctionDef { args, .. } => args,
-        _ => panic!("Found non-FunctionDef in match_args"),
-    }
+/// ANN401
+fn check_dynamically_typed(checker: &mut Checker, annotation: &Expr, name: &str) {
+    if checker.match_typing_module(annotation, "Any") {
+        checker.add_check(Check::new(
+            CheckKind::DynamicallyTypedExpression(name.to_string()),
+            Range::from_located(annotation),
+        ));
+    };
 }
 
-fn match_body(stmt: &Stmt) -> &Vec<Stmt> {
+fn match_function_def(stmt: &Stmt) -> (&str, &Arguments, &Option<Box<Expr>>, &Vec<Stmt>) {
     match &stmt.node {
-        StmtKind::FunctionDef { body, .. } | StmtKind::AsyncFunctionDef { body, .. } => body,
-        _ => panic!("Found non-FunctionDef in match_body"),
-    }
-}
-
-fn match_returns(stmt: &Stmt) -> &Option<Box<Expr>> {
-    match &stmt.node {
-        StmtKind::FunctionDef { returns, .. } | StmtKind::AsyncFunctionDef { returns, .. } => {
-            returns
+        StmtKind::FunctionDef {
+            name,
+            args,
+            returns,
+            body,
+            ..
         }
-        _ => panic!("Found non-FunctionDef in match_returns"),
+        | StmtKind::AsyncFunctionDef {
+            name,
+            args,
+            returns,
+            body,
+            ..
+        } => (name, args, returns, body),
+        _ => panic!("Found non-FunctionDef in match_name"),
     }
 }
 
 /// Generate flake8-annotation checks for a given `Definition`.
 pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &Visibility) {
+    // TODO(charlie): Consider using the AST directly here rather than `Definition`.
+    // We could adhere more closely to `flake8-annotations` by defining public
+    // vs. secret vs. protected.
     match &definition.kind {
         DefinitionKind::Module => {}
         DefinitionKind::Package => {}
         DefinitionKind::Class(_) => {}
         DefinitionKind::NestedClass(_) => {}
         DefinitionKind::Function(stmt) | DefinitionKind::NestedFunction(stmt) => {
-            let args = match_args(stmt);
-            let returns = match_returns(stmt);
+            let (name, args, returns, body) = match_function_def(stmt);
 
-            // ANN001
+            // ANN001, ANN401
             for arg in args
                 .args
                 .iter()
                 .chain(args.posonlyargs.iter())
                 .chain(args.kwonlyargs.iter())
             {
-                if arg.node.annotation.is_none() {
+                if let Some(expr) = &arg.node.annotation {
+                    if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                        check_dynamically_typed(checker, expr, &arg.node.arg);
+                    };
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN001) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeFunctionArgument,
+                                CheckKind::MissingTypeFunctionArgument(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
@@ -103,15 +116,22 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                 }
             }
 
-            // ANN002
+            // ANN002, ANN401
             if let Some(arg) = &args.vararg {
-                if arg.node.annotation.is_none() {
+                if let Some(expr) = &arg.node.annotation {
+                    if !checker.settings.flake8_annotations.allow_star_arg_any {
+                        if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                            let name = arg.node.arg.to_string();
+                            check_dynamically_typed(checker, expr, &format!("*{name}"));
+                        }
+                    }
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN002) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeArgs,
+                                CheckKind::MissingTypeArgs(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
@@ -119,15 +139,22 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                 }
             }
 
-            // ANN003
+            // ANN003, ANN401
             if let Some(arg) = &args.kwarg {
-                if arg.node.annotation.is_none() {
+                if let Some(expr) = &arg.node.annotation {
+                    if !checker.settings.flake8_annotations.allow_star_arg_any {
+                        if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                            let name = arg.node.arg.to_string();
+                            check_dynamically_typed(checker, expr, &format!("**{name}"));
+                        }
+                    }
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN003) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeKwargs,
+                                CheckKind::MissingTypeKwargs(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
@@ -135,12 +162,16 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                 }
             }
 
-            // ANN201, ANN202
-            if returns.is_none() {
+            // ANN201, ANN202, ANN401
+            if let Some(expr) = &returns {
+                if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                    check_dynamically_typed(checker, expr, name);
+                };
+            } else {
                 // Allow omission of return annotation in `__init__` functions, if the function
                 // only returns `None` (explicitly or implicitly).
                 if checker.settings.flake8_annotations.suppress_none_returning
-                    && is_none_returning(stmt)
+                    && is_none_returning(body)
                 {
                     return;
                 }
@@ -149,7 +180,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                     Visibility::Public => {
                         if checker.settings.enabled.contains(&CheckCode::ANN201) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingReturnTypePublicFunction,
+                                CheckKind::MissingReturnTypePublicFunction(name.to_string()),
                                 Range::from_located(stmt),
                             ));
                         }
@@ -157,7 +188,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                     Visibility::Private => {
                         if checker.settings.enabled.contains(&CheckCode::ANN202) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingReturnTypePrivateFunction,
+                                CheckKind::MissingReturnTypePrivateFunction(name.to_string()),
                                 Range::from_located(stmt),
                             ));
                         }
@@ -166,8 +197,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
             }
         }
         DefinitionKind::Method(stmt) => {
-            let args = match_args(stmt);
-            let returns = match_returns(stmt);
+            let (name, args, returns, body) = match_function_def(stmt);
             let mut has_any_typed_arg = false;
 
             // ANN001
@@ -181,55 +211,71 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                     usize::from(!visibility::is_staticmethod(stmt)),
                 )
             {
-                if arg.node.annotation.is_none() {
+                // ANN401 for dynamically typed arguments
+                if let Some(annotation) = &arg.node.annotation {
+                    has_any_typed_arg = true;
+                    if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                        check_dynamically_typed(checker, annotation, &arg.node.arg);
+                    }
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN001) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeFunctionArgument,
+                                CheckKind::MissingTypeFunctionArgument(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
                     }
-                } else {
-                    has_any_typed_arg = true;
                 }
             }
 
-            // ANN002
+            // ANN002, ANN401
             if let Some(arg) = &args.vararg {
-                if arg.node.annotation.is_none() {
+                has_any_typed_arg = true;
+                if let Some(expr) = &arg.node.annotation {
+                    if !checker.settings.flake8_annotations.allow_star_arg_any {
+                        if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                            let name = arg.node.arg.to_string();
+                            check_dynamically_typed(checker, expr, &format!("*{name}"));
+                        }
+                    }
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN002) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeArgs,
+                                CheckKind::MissingTypeArgs(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
                     }
-                } else {
-                    has_any_typed_arg = true;
                 }
             }
 
-            // ANN003
+            // ANN003, ANN401
             if let Some(arg) = &args.kwarg {
-                if arg.node.annotation.is_none() {
+                has_any_typed_arg = true;
+                if let Some(expr) = &arg.node.annotation {
+                    if !checker.settings.flake8_annotations.allow_star_arg_any {
+                        if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                            let name = arg.node.arg.to_string();
+                            check_dynamically_typed(checker, expr, &format!("**{name}"));
+                        }
+                    }
+                } else {
                     if !(checker.settings.flake8_annotations.suppress_dummy_args
                         && checker.settings.dummy_variable_rgx.is_match(&arg.node.arg))
                     {
                         if checker.settings.enabled.contains(&CheckCode::ANN003) {
                             checker.add_check(Check::new(
-                                CheckKind::MissingTypeKwargs,
+                                CheckKind::MissingTypeKwargs(arg.node.arg.to_string()),
                                 Range::from_located(arg),
                             ));
                         }
                     }
-                } else {
-                    has_any_typed_arg = true;
                 }
             }
 
@@ -238,16 +284,16 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                 if let Some(arg) = args.args.first() {
                     if arg.node.annotation.is_none() {
                         if visibility::is_classmethod(stmt) {
-                            if checker.settings.enabled.contains(&CheckCode::ANN101) {
+                            if checker.settings.enabled.contains(&CheckCode::ANN102) {
                                 checker.add_check(Check::new(
-                                    CheckKind::MissingTypeCls,
+                                    CheckKind::MissingTypeCls(arg.node.arg.to_string()),
                                     Range::from_located(arg),
                                 ));
                             }
                         } else {
-                            if checker.settings.enabled.contains(&CheckCode::ANN102) {
+                            if checker.settings.enabled.contains(&CheckCode::ANN101) {
                                 checker.add_check(Check::new(
-                                    CheckKind::MissingTypeSelf,
+                                    CheckKind::MissingTypeSelf(arg.node.arg.to_string()),
                                     Range::from_located(arg),
                                 ));
                             }
@@ -257,11 +303,15 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
             }
 
             // ANN201, ANN202
-            if returns.is_none() {
+            if let Some(expr) = &returns {
+                if checker.settings.enabled.contains(&CheckCode::ANN401) {
+                    check_dynamically_typed(checker, expr, name);
+                }
+            } else {
                 // Allow omission of return annotation in `__init__` functions, if the function
                 // only returns `None` (explicitly or implicitly).
                 if checker.settings.flake8_annotations.suppress_none_returning
-                    && is_none_returning(stmt)
+                    && is_none_returning(body)
                 {
                     return;
                 }
@@ -269,21 +319,21 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                 if visibility::is_classmethod(stmt) {
                     if checker.settings.enabled.contains(&CheckCode::ANN206) {
                         checker.add_check(Check::new(
-                            CheckKind::MissingReturnTypeClassMethod,
+                            CheckKind::MissingReturnTypeClassMethod(name.to_string()),
                             Range::from_located(stmt),
                         ));
                     }
                 } else if visibility::is_staticmethod(stmt) {
                     if checker.settings.enabled.contains(&CheckCode::ANN205) {
                         checker.add_check(Check::new(
-                            CheckKind::MissingReturnTypeStaticMethod,
+                            CheckKind::MissingReturnTypeStaticMethod(name.to_string()),
                             Range::from_located(stmt),
                         ));
                     }
                 } else if visibility::is_magic(stmt) {
                     if checker.settings.enabled.contains(&CheckCode::ANN204) {
                         checker.add_check(Check::new(
-                            CheckKind::MissingReturnTypeMagicMethod,
+                            CheckKind::MissingReturnTypeMagicMethod(name.to_string()),
                             Range::from_located(stmt),
                         ));
                     }
@@ -295,7 +345,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                             && has_any_typed_arg)
                         {
                             checker.add_check(Check::new(
-                                CheckKind::MissingReturnTypeMagicMethod,
+                                CheckKind::MissingReturnTypeMagicMethod(name.to_string()),
                                 Range::from_located(stmt),
                             ));
                         }
@@ -305,7 +355,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                         Visibility::Public => {
                             if checker.settings.enabled.contains(&CheckCode::ANN201) {
                                 checker.add_check(Check::new(
-                                    CheckKind::MissingReturnTypePublicFunction,
+                                    CheckKind::MissingReturnTypePublicFunction(name.to_string()),
                                     Range::from_located(stmt),
                                 ));
                             }
@@ -313,7 +363,7 @@ pub fn definition(checker: &mut Checker, definition: &Definition, visibility: &V
                         Visibility::Private => {
                             if checker.settings.enabled.contains(&CheckCode::ANN202) {
                                 checker.add_check(Check::new(
-                                    CheckKind::MissingReturnTypePrivateFunction,
+                                    CheckKind::MissingReturnTypePrivateFunction(name.to_string()),
                                     Range::from_located(stmt),
                                 ));
                             }

src/flake8_annotations/settings.rs

@@ -16,6 +16,8 @@ pub struct Options {
     /// - Explicit `return` statement(s) all return `None` (explicitly or
     ///   implicitly).
     pub suppress_none_returning: Option<bool>,
+    /// Suppress ANN401 for dynamically typed *args and **kwargs.
+    pub allow_star_arg_any: Option<bool>,
 }
 
 #[derive(Debug, Hash, Default)]
@@ -23,6 +25,7 @@ pub struct Settings {
     pub mypy_init_return: bool,
     pub suppress_dummy_args: bool,
     pub suppress_none_returning: bool,
+    pub allow_star_arg_any: bool,
 }
 
 impl Settings {
@@ -31,6 +34,7 @@ impl Settings {
             mypy_init_return: options.mypy_init_return.unwrap_or_default(),
             suppress_dummy_args: options.suppress_dummy_args.unwrap_or_default(),
             suppress_none_returning: options.suppress_none_returning.unwrap_or_default(),
+            allow_star_arg_any: options.allow_star_arg_any.unwrap_or_default(),
         }
     }
 }

src/flake8_annotations/snapshots/ruff__flake8_annotations__tests__allow_star_arg_any.snap

@@ -0,0 +1,41 @@
+---
+source: src/flake8_annotations/mod.rs
+expression: checks
+---
+- kind:
+    DynamicallyTypedExpression: a
+  location:
+    row: 10
+    column: 11
+  end_location:
+    row: 10
+    column: 14
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: foo
+  location:
+    row: 15
+    column: 46
+  end_location:
+    row: 15
+    column: 49
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: a
+  location:
+    row: 40
+    column: 28
+  end_location:
+    row: 40
+    column: 31
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: foo_method
+  location:
+    row: 44
+    column: 66
+  end_location:
+    row: 44
+    column: 69
+  fix: ~
+

src/flake8_annotations/snapshots/ruff__flake8_annotations__tests__defaults.snap

@@ -2,68 +2,202 @@
 source: src/flake8_annotations/mod.rs
 expression: checks
 ---
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
-    row: 2
+    row: 4
     column: 0
   end_location:
-    row: 7
+    row: 9
     column: 0
   fix: ~
-- kind: MissingTypeFunctionArgument
+- kind:
+    MissingTypeFunctionArgument: a
   location:
-    row: 2
+    row: 4
     column: 8
   end_location:
-    row: 2
+    row: 4
     column: 9
   fix: ~
-- kind: MissingTypeFunctionArgument
+- kind:
+    MissingTypeFunctionArgument: b
   location:
-    row: 2
+    row: 4
     column: 11
   end_location:
-    row: 2
+    row: 4
     column: 12
   fix: ~
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
-    row: 7
+    row: 9
     column: 0
   end_location:
-    row: 12
+    row: 14
     column: 0
   fix: ~
-- kind: MissingTypeFunctionArgument
+- kind:
+    MissingTypeFunctionArgument: b
   location:
-    row: 7
+    row: 9
     column: 16
   end_location:
-    row: 7
+    row: 9
     column: 17
   fix: ~
-- kind: MissingTypeFunctionArgument
+- kind:
+    MissingTypeFunctionArgument: b
   location:
-    row: 12
+    row: 14
     column: 16
   end_location:
-    row: 12
+    row: 14
     column: 17
   fix: ~
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
-    row: 17
+    row: 19
     column: 0
   end_location:
-    row: 22
+    row: 24
     column: 0
   fix: ~
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
-    row: 22
+    row: 24
     column: 0
   end_location:
-    row: 27
+    row: 29
     column: 0
   fix: ~
+- kind:
+    DynamicallyTypedExpression: a
+  location:
+    row: 44
+    column: 11
+  end_location:
+    row: 44
+    column: 14
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: foo
+  location:
+    row: 49
+    column: 46
+  end_location:
+    row: 49
+    column: 49
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "*args"
+  location:
+    row: 54
+    column: 23
+  end_location:
+    row: 54
+    column: 26
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "**kwargs"
+  location:
+    row: 54
+    column: 38
+  end_location:
+    row: 54
+    column: 41
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "*args"
+  location:
+    row: 59
+    column: 23
+  end_location:
+    row: 59
+    column: 26
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "**kwargs"
+  location:
+    row: 64
+    column: 38
+  end_location:
+    row: 64
+    column: 41
+  fix: ~
+- kind:
+    MissingTypeSelf: self
+  location:
+    row: 74
+    column: 12
+  end_location:
+    row: 74
+    column: 16
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: a
+  location:
+    row: 78
+    column: 28
+  end_location:
+    row: 78
+    column: 31
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: foo
+  location:
+    row: 82
+    column: 66
+  end_location:
+    row: 82
+    column: 69
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "*params"
+  location:
+    row: 86
+    column: 42
+  end_location:
+    row: 86
+    column: 45
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "**options"
+  location:
+    row: 86
+    column: 58
+  end_location:
+    row: 86
+    column: 61
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "*params"
+  location:
+    row: 90
+    column: 42
+  end_location:
+    row: 90
+    column: 45
+  fix: ~
+- kind:
+    DynamicallyTypedExpression: "**options"
+  location:
+    row: 94
+    column: 58
+  end_location:
+    row: 94
+    column: 61
+  fix: ~
+- kind:
+    MissingTypeCls: cls
+  location:
+    row: 104
+    column: 12
+  end_location:
+    row: 104
+    column: 15
+  fix: ~
 

src/flake8_annotations/snapshots/ruff__flake8_annotations__tests__mypy_init_return.snap

@@ -2,7 +2,8 @@
 source: src/flake8_annotations/mod.rs
 expression: checks
 ---
-- kind: MissingReturnTypeMagicMethod
+- kind:
+    MissingReturnTypeMagicMethod: __init__
   location:
     row: 5
     column: 4
@@ -10,7 +11,8 @@ expression: checks
     row: 10
     column: 0
   fix: ~
-- kind: MissingReturnTypeMagicMethod
+- kind:
+    MissingReturnTypeMagicMethod: __init__
   location:
     row: 11
     column: 4
@@ -18,7 +20,8 @@ expression: checks
     row: 16
     column: 0
   fix: ~
-- kind: MissingReturnTypePrivateFunction
+- kind:
+    MissingReturnTypePrivateFunction: __init__
   location:
     row: 40
     column: 0

src/flake8_annotations/snapshots/ruff__flake8_annotations__tests__suppress_none_returning.snap

@@ -2,7 +2,8 @@
 source: src/flake8_annotations/mod.rs
 expression: checks
 ---
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
     row: 45
     column: 0
@@ -10,7 +11,8 @@ expression: checks
     row: 50
     column: 0
   fix: ~
-- kind: MissingReturnTypePublicFunction
+- kind:
+    MissingReturnTypePublicFunction: foo
   location:
     row: 50
     column: 0

src/flake8_bugbear/constants.rs

@@ -0,0 +1,5 @@
+use once_cell::sync::Lazy;
+use regex::Regex;
+
+pub static IDENTIFIER_REGEX: Lazy<Regex> =
+    Lazy::new(|| Regex::new(r"^[A-Za-z_][A-Za-z0-9_]*$").unwrap());

src/flake8_bugbear/mod.rs

@@ -1 +1,2 @@
+mod constants;
 pub mod plugins;

src/flake8_bugbear/plugins/function_call_argument_default.rs

@@ -8,6 +8,7 @@ use crate::check_ast::Checker;
 use crate::checks::{Check, CheckKind};
 use crate::flake8_bugbear::plugins::mutable_argument_default::is_mutable_func;
 
+// TODO(charlie): Verify imports for each of the imported members.
 const IMMUTABLE_FUNCS: [&str; 11] = [
     "tuple",
     "frozenset",

src/flake8_bugbear/plugins/getattr_with_constant.rs

@@ -0,0 +1,53 @@
+use rustpython_ast::{Constant, Expr, ExprContext, ExprKind};
+
+use crate::ast::types::Range;
+use crate::autofix::Fix;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckKind};
+use crate::code_gen::SourceGenerator;
+use crate::flake8_bugbear::constants::IDENTIFIER_REGEX;
+use crate::python::keyword::KWLIST;
+
+fn attribute(value: &Expr, attr: &str) -> Expr {
+    Expr::new(
+        Default::default(),
+        Default::default(),
+        ExprKind::Attribute {
+            value: Box::new(value.clone()),
+            attr: attr.to_string(),
+            ctx: ExprContext::Load,
+        },
+    )
+}
+
+pub fn getattr_with_constant(checker: &mut Checker, expr: &Expr, func: &Expr, args: &[Expr]) {
+    if let ExprKind::Name { id, .. } = &func.node {
+        if id == "getattr" {
+            if let [obj, arg] = args {
+                if let ExprKind::Constant {
+                    value: Constant::Str(value),
+                    ..
+                } = &arg.node
+                {
+                    if IDENTIFIER_REGEX.is_match(value) && !KWLIST.contains(&value.as_str()) {
+                        let mut check =
+                            Check::new(CheckKind::GetAttrWithConstant, Range::from_located(expr));
+                        if checker.patch() {
+                            let mut generator = SourceGenerator::new();
+                            if let Ok(()) = generator.unparse_expr(&attribute(obj, value), 0) {
+                                if let Ok(content) = generator.generate() {
+                                    check.amend(Fix::replacement(
+                                        content,
+                                        expr.location,
+                                        expr.end_location.unwrap(),
+                                    ));
+                                }
+                            }
+                        }
+                        checker.add_check(check);
+                    }
+                }
+            }
+        }
+    }
+}

src/flake8_bugbear/plugins/mod.rs

@@ -4,9 +4,14 @@ pub use assignment_to_os_environ::assignment_to_os_environ;
 pub use cannot_raise_literal::cannot_raise_literal;
 pub use duplicate_exceptions::{duplicate_exceptions, duplicate_handler_exceptions};
 pub use function_call_argument_default::function_call_argument_default;
+pub use getattr_with_constant::getattr_with_constant;
 pub use mutable_argument_default::mutable_argument_default;
 pub use redundant_tuple_in_exception_handler::redundant_tuple_in_exception_handler;
+pub use setattr_with_constant::setattr_with_constant;
+pub use star_arg_unpacking_after_keyword_arg::star_arg_unpacking_after_keyword_arg;
+pub use strip_with_multi_characters::strip_with_multi_characters;
 pub use unary_prefix_increment::unary_prefix_increment;
+pub use unreliable_callable_check::unreliable_callable_check;
 pub use unused_loop_control_variable::unused_loop_control_variable;
 pub use useless_comparison::useless_comparison;
 pub use useless_expression::useless_expression;
@@ -17,9 +22,14 @@ mod assignment_to_os_environ;
 mod cannot_raise_literal;
 mod duplicate_exceptions;
 mod function_call_argument_default;
+mod getattr_with_constant;
 mod mutable_argument_default;
 mod redundant_tuple_in_exception_handler;
+mod setattr_with_constant;
+mod star_arg_unpacking_after_keyword_arg;
+mod strip_with_multi_characters;
 mod unary_prefix_increment;
+mod unreliable_callable_check;
 mod unused_loop_control_variable;
 mod useless_comparison;
 mod useless_expression;

src/flake8_bugbear/plugins/mutable_argument_default.rs

@@ -4,6 +4,7 @@ use crate::ast::types::Range;
 use crate::check_ast::Checker;
 use crate::checks::{Check, CheckKind};
 
+// TODO(charlie): Verify imports for each of the imported members.
 pub fn is_mutable_func(expr: &Expr) -> bool {
     match &expr.node {
         ExprKind::Name { id, .. }

src/flake8_bugbear/plugins/setattr_with_constant.rs

@@ -0,0 +1,29 @@
+use rustpython_ast::{Constant, Expr, ExprKind};
+
+use crate::ast::types::Range;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckKind};
+use crate::flake8_bugbear::constants::IDENTIFIER_REGEX;
+use crate::python::keyword::KWLIST;
+
+/// B010
+pub fn setattr_with_constant(checker: &mut Checker, expr: &Expr, func: &Expr, args: &[Expr]) {
+    if let ExprKind::Name { id, .. } = &func.node {
+        if id == "setattr" {
+            if let [_, arg, _] = args {
+                if let ExprKind::Constant {
+                    value: Constant::Str(value),
+                    ..
+                } = &arg.node
+                {
+                    if IDENTIFIER_REGEX.is_match(value) && !KWLIST.contains(&value.as_str()) {
+                        checker.add_check(Check::new(
+                            CheckKind::SetAttrWithConstant,
+                            Range::from_located(expr),
+                        ));
+                    }
+                }
+            }
+        }
+    }
+}

src/flake8_bugbear/plugins/star_arg_unpacking_after_keyword_arg.rs

@@ -0,0 +1,25 @@
+use rustpython_ast::{Expr, ExprKind, Keyword};
+
+use crate::ast::types::Range;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckKind};
+
+/// B026
+pub fn star_arg_unpacking_after_keyword_arg(
+    checker: &mut Checker,
+    args: &[Expr],
+    keywords: &[Keyword],
+) {
+    if let Some(keyword) = keywords.first() {
+        for arg in args {
+            if let ExprKind::Starred { .. } = arg.node {
+                if arg.location > keyword.location {
+                    checker.add_check(Check::new(
+                        CheckKind::StarArgUnpackingAfterKeywordArg,
+                        Range::from_located(arg),
+                    ));
+                }
+            }
+        }
+    }
+}

src/flake8_bugbear/plugins/strip_with_multi_characters.rs

@@ -0,0 +1,28 @@
+use itertools::Itertools;
+use rustpython_ast::{Constant, Expr, ExprKind};
+
+use crate::ast::types::Range;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckKind};
+
+/// B005
+pub fn strip_with_multi_characters(checker: &mut Checker, expr: &Expr, func: &Expr, args: &[Expr]) {
+    if let ExprKind::Attribute { attr, .. } = &func.node {
+        if attr == "strip" || attr == "lstrip" || attr == "rstrip" {
+            if args.len() == 1 {
+                if let ExprKind::Constant {
+                    value: Constant::Str(value),
+                    ..
+                } = &args[0].node
+                {
+                    if value.len() > 1 && value.chars().unique().count() != value.len() {
+                        checker.add_check(Check::new(
+                            CheckKind::StripWithMultiCharacters,
+                            Range::from_located(expr),
+                        ));
+                    }
+                }
+            }
+        }
+    }
+}

src/flake8_bugbear/plugins/unreliable_callable_check.rs

@@ -0,0 +1,27 @@
+use rustpython_ast::{Constant, Expr, ExprKind};
+
+use crate::ast::types::Range;
+use crate::check_ast::Checker;
+use crate::checks::{Check, CheckKind};
+
+/// B004
+pub fn unreliable_callable_check(checker: &mut Checker, expr: &Expr, func: &Expr, args: &[Expr]) {
+    if let ExprKind::Name { id, .. } = &func.node {
+        if id == "getattr" || id == "hasattr" {
+            if args.len() >= 2 {
+                if let ExprKind::Constant {
+                    value: Constant::Str(s),
+                    ..
+                } = &args[1].node
+                {
+                    if s == "__call__" {
+                        checker.add_check(Check::new(
+                            CheckKind::UnreliableCallableCheck,
+                            Range::from_located(expr),
+                        ));
+                    }
+                }
+            }
+        }
+    }
+}

src/flake8_bugbear/plugins/useless_comparison.rs

@@ -5,10 +5,10 @@ use crate::check_ast::Checker;
 use crate::checks::{Check, CheckKind};
 
 pub fn useless_comparison(checker: &mut Checker, expr: &Expr) {
-    if let ExprKind::Compare { left, .. } = &expr.node {
+    if matches!(expr.node, ExprKind::Compare { .. }) {
         checker.add_check(Check::new(
             CheckKind::UselessComparison,
-            Range::from_located(left),
+            Range::from_located(expr),
         ));
     }
 }

src/flake8_comprehensions/checks.rs

@@ -149,19 +149,26 @@ pub fn unnecessary_list_comprehension_set(
 
 /// C404 (`dict([...])`)
 pub fn unnecessary_list_comprehension_dict(
+    expr: &Expr,
     func: &Expr,
     args: &[Expr],
     keywords: &[Keyword],
+    locator: &SourceCodeLocator,
+    fix: bool,
     location: Range,
 ) -> Option<Check> {
     let argument = exactly_one_argument_with_matching_function("dict", func, args, keywords)?;
     if let ExprKind::ListComp { elt, .. } = &argument {
         match &elt.node {
             ExprKind::Tuple { elts, .. } if elts.len() == 2 => {
-                return Some(Check::new(
-                    CheckKind::UnnecessaryListComprehensionDict,
-                    location,
-                ));
+                let mut check = Check::new(CheckKind::UnnecessaryListComprehensionDict, location);
+                if fix {
+                    match fixes::fix_unnecessary_list_comprehension_dict(locator, expr) {
+                        Ok(fix) => check.amend(fix),
+                        Err(e) => error!("Failed to generate fix: {}", e),
+                    }
+                }
+                return Some(check);
             }
             _ => {}
         }
@@ -348,8 +355,11 @@ pub fn unnecessary_list_call(
 
 /// C413
 pub fn unnecessary_call_around_sorted(
+    expr: &Expr,
     func: &Expr,
     args: &[Expr],
+    locator: &SourceCodeLocator,
+    fix: bool,
     location: Range,
 ) -> Option<Check> {
     let outer = function_name(func)?;
@@ -358,10 +368,17 @@ pub fn unnecessary_call_around_sorted(
     }
     if let ExprKind::Call { func, .. } = &args.first()?.node {
         if function_name(func)? == "sorted" {
-            return Some(Check::new(
+            let mut check = Check::new(
                 CheckKind::UnnecessaryCallAroundSorted(outer.to_string()),
                 location,
-            ));
+            );
+            if fix {
+                match fixes::fix_unnecessary_call_around_sorted(locator, expr) {
+                    Ok(fix) => check.amend(fix),
+                    Err(e) => error!("Failed to generate fix: {}", e),
+                }
+            }
+            return Some(check);
         }
     }
     None

src/flake8_comprehensions/fixes.rs

@@ -1,8 +1,9 @@
 use anyhow::Result;
 use libcst_native::{
-    Arg, Call, Codegen, Dict, DictComp, DictElement, Element, Expr, Expression, LeftCurlyBrace,
-    LeftParen, LeftSquareBracket, List, ListComp, Name, ParenthesizableWhitespace, RightCurlyBrace,
-    RightParen, RightSquareBracket, Set, SetComp, SimpleString, SimpleWhitespace, Tuple,
+    Arg, AssignEqual, Call, Codegen, Dict, DictComp, DictElement, Element, Expr, Expression,
+    LeftCurlyBrace, LeftParen, LeftSquareBracket, List, ListComp, Name, ParenthesizableWhitespace,
+    RightCurlyBrace, RightParen, RightSquareBracket, Set, SetComp, SimpleString, SimpleWhitespace,
+    Tuple,
 };
 
 use crate::ast::types::Range;
@@ -220,6 +221,64 @@ pub fn fix_unnecessary_list_comprehension_set(
     ))
 }
 
+/// (C404) Convert `dict([(i, i) for i in range(3)])` to `{i: i for i in
+/// range(3)}`.
+pub fn fix_unnecessary_list_comprehension_dict(
+    locator: &SourceCodeLocator,
+    expr: &rustpython_ast::Expr,
+) -> Result<Fix> {
+    let module_text = locator.slice_source_code_range(&Range::from_located(expr));
+    let mut tree = match_module(&module_text)?;
+    let mut body = match_expr(&mut tree)?;
+    let call = match_call(body)?;
+    let arg = match_arg(call)?;
+
+    let list_comp = if let Expression::ListComp(list_comp) = &arg.value {
+        list_comp
+    } else {
+        return Err(anyhow::anyhow!("Expected node to be: Expression::ListComp"));
+    };
+
+    let tuple = if let Expression::Tuple(tuple) = &*list_comp.elt {
+        tuple
+    } else {
+        return Err(anyhow::anyhow!("Expected node to be: Expression::Tuple"));
+    };
+
+    let (key, comma, value) = match &tuple.elements[..] {
+        [Element::Simple {
+            value: key,
+            comma: Some(comma),
+        }, Element::Simple { value, .. }] => (key, comma, value),
+        _ => return Err(anyhow::anyhow!("Expected tuple with two elements")),
+    };
+
+    body.value = Expression::DictComp(Box::new(DictComp {
+        key: Box::new(key.clone()),
+        value: Box::new(value.clone()),
+        for_in: list_comp.for_in.clone(),
+        whitespace_before_colon: comma.whitespace_before.clone(),
+        whitespace_after_colon: comma.whitespace_after.clone(),
+        lbrace: LeftCurlyBrace {
+            whitespace_after: call.whitespace_before_args.clone(),
+        },
+        rbrace: RightCurlyBrace {
+            whitespace_before: arg.whitespace_after_arg.clone(),
+        },
+        lpar: list_comp.lpar.clone(),
+        rpar: list_comp.rpar.clone(),
+    }));
+
+    let mut state = Default::default();
+    tree.codegen(&mut state);
+
+    Ok(Fix::replacement(
+        state.to_string(),
+        expr.location,
+        expr.end_location.unwrap(),
+    ))
+}
+
 /// (C405) Convert `set((1, 2))` to `{1, 2}`.
 pub fn fix_unnecessary_literal_set(
     locator: &SourceCodeLocator,
@@ -591,6 +650,92 @@ pub fn fix_unnecessary_list_call(
     ))
 }
 
+/// (C413) Convert `list(sorted([2, 3, 1]))` to `sorted([2, 3, 1])`.
+/// (C413) Convert `reversed(sorted([2, 3, 1]))` to `sorted([2, 3, 1],
+/// reverse=True)`.
+pub fn fix_unnecessary_call_around_sorted(
+    locator: &SourceCodeLocator,
+    expr: &rustpython_ast::Expr,
+) -> Result<Fix> {
+    let module_text = locator.slice_source_code_range(&Range::from_located(expr));
+    let mut tree = match_module(&module_text)?;
+    let mut body = match_expr(&mut tree)?;
+    let outer_call = match_call(body)?;
+    let inner_call = match &outer_call.args[..] {
+        [arg] => {
+            if let Expression::Call(call) = &arg.value {
+                call
+            } else {
+                return Err(anyhow::anyhow!("Expected node to be: Expression::Call "));
+            }
+        }
+        _ => {
+            return Err(anyhow::anyhow!(
+                "Expected one argument in outer function call"
+            ))
+        }
+    };
+
+    if let Expression::Name(outer_name) = &*outer_call.func {
+        if outer_name.value == "list" {
+            body.value = Expression::Call(inner_call.clone());
+        } else {
+            let args = if inner_call.args.iter().any(|arg| {
+                matches!(
+                    arg.keyword,
+                    Some(Name {
+                        value: "reverse",
+                        ..
+                    })
+                )
+            }) {
+                inner_call.args.clone()
+            } else {
+                let mut args = inner_call.args.clone();
+                args.push(Arg {
+                    value: Expression::Name(Box::new(Name {
+                        value: "True",
+                        lpar: Default::default(),
+                        rpar: Default::default(),
+                    })),
+                    keyword: Some(Name {
+                        value: "reverse",
+                        lpar: Default::default(),
+                        rpar: Default::default(),
+                    }),
+                    equal: Some(AssignEqual {
+                        whitespace_before: Default::default(),
+                        whitespace_after: Default::default(),
+                    }),
+                    comma: Default::default(),
+                    star: Default::default(),
+                    whitespace_after_star: Default::default(),
+                    whitespace_after_arg: Default::default(),
+                });
+                args
+            };
+
+            body.value = Expression::Call(Box::new(Call {
+                func: inner_call.func.clone(),
+                args,
+                lpar: inner_call.lpar.clone(),
+                rpar: inner_call.rpar.clone(),
+                whitespace_after_func: inner_call.whitespace_after_func.clone(),
+                whitespace_before_args: inner_call.whitespace_before_args.clone(),
+            }))
+        }
+    }
+
+    let mut state = Default::default();
+    tree.codegen(&mut state);
+
+    Ok(Fix::replacement(
+        state.to_string(),
+        expr.location,
+        expr.end_location.unwrap(),
+    ))
+}
+
 /// (C416) Convert `[i for i in x]` to `list(x)`.
 pub fn fix_unnecessary_comprehension(
     locator: &SourceCodeLocator,

src/flake8_quotes/mod.rs

@@ -6,30 +6,13 @@ mod tests {
     use std::path::Path;
 
     use anyhow::Result;
-    use rustpython_parser::lexer::LexResult;
     use test_case::test_case;
 
     use crate::autofix::fixer;
-    use crate::checks::{Check, CheckCode};
+    use crate::checks::CheckCode;
     use crate::flake8_quotes::settings::Quote;
-    use crate::linter::tokenize;
-    use crate::{flake8_quotes, fs, linter, noqa, Settings, SourceCodeLocator};
-
-    fn check_path(path: &Path, settings: &Settings, autofix: &fixer::Mode) -> Result<Vec<Check>> {
-        let contents = fs::read_file(path)?;
-        let tokens: Vec<LexResult> = tokenize(&contents);
-        let locator = SourceCodeLocator::new(&contents);
-        let noqa_line_for = noqa::extract_noqa_line_for(&tokens);
-        linter::check_path(
-            path,
-            &contents,
-            tokens,
-            &locator,
-            &noqa_line_for,
-            settings,
-            autofix,
-        )
-    }
+    use crate::linter::test_path;
+    use crate::{flake8_quotes, Settings};
 
     #[test_case(Path::new("doubles.py"))]
     #[test_case(Path::new("doubles_escaped.py"))]
@@ -38,7 +21,7 @@ mod tests {
     #[test_case(Path::new("doubles_wrapped.py"))]
     fn doubles(path: &Path) -> Result<()> {
         let snapshot = format!("doubles_{}", path.to_string_lossy());
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_quotes")
                 .join(path)
                 .as_path(),
@@ -70,7 +53,7 @@ mod tests {
     #[test_case(Path::new("singles_wrapped.py"))]
     fn singles(path: &Path) -> Result<()> {
         let snapshot = format!("singles_{}", path.to_string_lossy());
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_quotes")
                 .join(path)
                 .as_path(),
@@ -107,7 +90,7 @@ mod tests {
     #[test_case(Path::new("docstring_singles_function.py"))]
     fn double_docstring(path: &Path) -> Result<()> {
         let snapshot = format!("double_docstring_{}", path.to_string_lossy());
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_quotes")
                 .join(path)
                 .as_path(),
@@ -144,7 +127,7 @@ mod tests {
     #[test_case(Path::new("docstring_singles_function.py"))]
     fn single_docstring(path: &Path) -> Result<()> {
         let snapshot = format!("single_docstring_{}", path.to_string_lossy());
-        let mut checks = check_path(
+        let mut checks = test_path(
             Path::new("./resources/test/fixtures/flake8_quotes")
                 .join(path)
                 .as_path(),

src/isort/categorize.rs

@@ -0,0 +1,70 @@
+use std::collections::{BTreeMap, BTreeSet};
+use std::fs;
+use std::path::PathBuf;
+
+use once_cell::sync::Lazy;
+
+use crate::python::sys::KNOWN_STANDARD_LIBRARY;
+
+#[derive(Debug, PartialOrd, Ord, PartialEq, Eq, Clone)]
+pub enum ImportType {
+    Future,
+    StandardLibrary,
+    ThirdParty,
+    FirstParty,
+    LocalFolder,
+}
+
+pub fn categorize(
+    module_base: &str,
+    level: &Option<usize>,
+    src: &[PathBuf],
+    known_first_party: &BTreeSet<String>,
+    known_third_party: &BTreeSet<String>,
+    extra_standard_library: &BTreeSet<String>,
+) -> ImportType {
+    if level.map(|level| level > 0).unwrap_or(false) {
+        ImportType::LocalFolder
+    } else if known_first_party.contains(module_base) {
+        ImportType::FirstParty
+    } else if known_third_party.contains(module_base) {
+        ImportType::ThirdParty
+    } else if extra_standard_library.contains(module_base) {
+        ImportType::StandardLibrary
+    } else if let Some(import_type) = STATIC_CLASSIFICATIONS.get(module_base) {
+        import_type.clone()
+    } else if KNOWN_STANDARD_LIBRARY.contains(module_base) {
+        ImportType::StandardLibrary
+    } else if find_local(src, module_base) {
+        ImportType::FirstParty
+    } else {
+        ImportType::ThirdParty
+    }
+}
+
+static STATIC_CLASSIFICATIONS: Lazy<BTreeMap<&'static str, ImportType>> = Lazy::new(|| {
+    BTreeMap::from([
+        ("__future__", ImportType::Future),
+        ("__main__", ImportType::FirstParty),
+        // Force `disutils` to be considered third-party.
+        ("disutils", ImportType::ThirdParty),
+        // Relative imports (e.g., `from . import module`).
+        ("", ImportType::FirstParty),
+    ])
+});
+
+fn find_local(paths: &[PathBuf], base: &str) -> bool {
+    for path in paths {
+        if let Ok(metadata) = fs::metadata(path.join(base)) {
+            if metadata.is_dir() {
+                return true;
+            }
+        }
+        if let Ok(metadata) = fs::metadata(path.join(format!("{base}.py"))) {
+            if metadata.is_file() {
+                return true;
+            }
+        }
+    }
+    false
+}

src/isort/mod.rs

@@ -0,0 +1,272 @@
+use std::collections::{BTreeMap, BTreeSet};
+use std::path::PathBuf;
+
+use itertools::Itertools;
+use ropey::RopeBuilder;
+use rustpython_ast::{Stmt, StmtKind};
+
+use crate::isort::categorize::{categorize, ImportType};
+use crate::isort::sorting::{member_key, module_key};
+use crate::isort::types::{AliasData, ImportBlock, ImportFromData, Importable, OrderedImportBlock};
+
+mod categorize;
+pub mod plugins;
+pub mod settings;
+mod sorting;
+pub mod track;
+mod types;
+
+// Hard-code four-space indentation for the imports themselves, to match Black.
+const INDENT: &str = "    ";
+
+fn normalize_imports<'a>(imports: &'a [&'a Stmt]) -> ImportBlock<'a> {
+    let mut block: ImportBlock = Default::default();
+    for import in imports {
+        match &import.node {
+            StmtKind::Import { names } => {
+                for name in names {
+                    block.import.insert(AliasData {
+                        name: &name.node.name,
+                        asname: &name.node.asname,
+                    });
+                }
+            }
+            StmtKind::ImportFrom {
+                module,
+                names,
+                level,
+            } => {
+                let targets = block
+                    .import_from
+                    .entry(ImportFromData { module, level })
+                    .or_default();
+                for name in names {
+                    targets.insert(AliasData {
+                        name: &name.node.name,
+                        asname: &name.node.asname,
+                    });
+                }
+            }
+            _ => unreachable!("Expected StmtKind::Import | StmtKind::ImportFrom"),
+        }
+    }
+    block
+}
+
+fn categorize_imports<'a>(
+    block: ImportBlock<'a>,
+    src: &[PathBuf],
+    known_first_party: &BTreeSet<String>,
+    known_third_party: &BTreeSet<String>,
+    extra_standard_library: &BTreeSet<String>,
+) -> BTreeMap<ImportType, ImportBlock<'a>> {
+    let mut block_by_type: BTreeMap<ImportType, ImportBlock> = Default::default();
+    // Categorize `StmtKind::Import`.
+    for alias in block.import {
+        let import_type = categorize(
+            &alias.module_base(),
+            &None,
+            src,
+            known_first_party,
+            known_third_party,
+            extra_standard_library,
+        );
+        block_by_type
+            .entry(import_type)
+            .or_default()
+            .import
+            .insert(alias);
+    }
+    // Categorize `StmtKind::ImportFrom`.
+    for (import_from, aliases) in block.import_from {
+        let classification = categorize(
+            &import_from.module_base(),
+            import_from.level,
+            src,
+            known_first_party,
+            known_third_party,
+            extra_standard_library,
+        );
+        block_by_type
+            .entry(classification)
+            .or_default()
+            .import_from
+            .insert(import_from, aliases);
+    }
+    block_by_type
+}
+
+fn sort_imports(block: ImportBlock) -> OrderedImportBlock {
+    let mut ordered: OrderedImportBlock = Default::default();
+    // Sort `StmtKind::Import`.
+    for import in block
+        .import
+        .into_iter()
+        .sorted_by_cached_key(|alias| module_key(alias.name))
+    {
+        ordered.import.push(import);
+    }
+    // Sort `StmtKind::ImportFrom`.
+    for (import_from, aliases) in
+        block
+            .import_from
+            .into_iter()
+            .sorted_by_cached_key(|(import_from, _)| {
+                import_from.module.as_ref().map(|module| module_key(module))
+            })
+    {
+        ordered.import_from.push((
+            import_from,
+            aliases
+                .into_iter()
+                .sorted_by_cached_key(|alias| member_key(alias.name))
+                .collect(),
+        ));
+    }
+    ordered
+}
+
+pub fn format_imports(
+    block: Vec<&Stmt>,
+    line_length: &usize,
+    src: &[PathBuf],
+    known_first_party: &BTreeSet<String>,
+    known_third_party: &BTreeSet<String>,
+    extra_standard_library: &BTreeSet<String>,
+) -> String {
+    // Normalize imports (i.e., deduplicate, aggregate `from` imports).
+    let block = normalize_imports(&block);
+
+    // Categorize by type (e.g., first-party vs. third-party).
+    let block_by_type = categorize_imports(
+        block,
+        src,
+        known_first_party,
+        known_third_party,
+        extra_standard_library,
+    );
+
+    // Generate replacement source code.
+    let mut output = RopeBuilder::new();
+    let mut first_block = true;
+    for import_block in block_by_type.into_values() {
+        let import_block = sort_imports(import_block);
+
+        // Add a blank line between every section.
+        if !first_block {
+            output.append("\n");
+        } else {
+            first_block = false;
+        }
+
+        // Format `StmtKind::Import` statements.
+        for AliasData { name, asname } in import_block.import.iter() {
+            if let Some(asname) = asname {
+                output.append(&format!("import {} as {}\n", name, asname));
+            } else {
+                output.append(&format!("import {}\n", name));
+            }
+        }
+
+        // Format `StmtKind::ImportFrom` statements.
+        for (import_from, aliases) in import_block.import_from.iter() {
+            let prelude: String = format!("from {} import ", import_from.module_name());
+            let members: Vec<String> = aliases
+                .iter()
+                .map(|AliasData { name, asname }| {
+                    if let Some(asname) = asname {
+                        format!("{} as {}", name, asname)
+                    } else {
+                        name.to_string()
+                    }
+                })
+                .collect();
+
+            // Can we fit the import on a single line?
+            let expected_len: usize =
+                    // `from base import `
+                    prelude.len()
+                        // `member( as alias)?`
+                        + members.iter().map(|part| part.len()).sum::<usize>()
+                        // `, `
+                        + 2 * (members.len() - 1);
+
+            if expected_len <= *line_length {
+                // `from base import `
+                output.append(&prelude);
+                // `member( as alias)?(, )?`
+                for (index, part) in members.into_iter().enumerate() {
+                    if index > 0 {
+                        output.append(", ");
+                    }
+                    output.append(&part);
+                }
+                // `\n`
+                output.append("\n");
+            } else {
+                // `from base import (\n`
+                output.append(&prelude);
+                output.append("(");
+                output.append("\n");
+
+                // `    member( as alias)?,\n`
+                for part in members {
+                    output.append(INDENT);
+                    output.append(&part);
+                    output.append(",");
+                    output.append("\n");
+                }
+
+                // `)\n`
+                output.append(")");
+                output.append("\n");
+            }
+        }
+    }
+    output.finish().to_string()
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::Path;
+
+    use anyhow::Result;
+    use test_case::test_case;
+
+    use crate::autofix::fixer;
+    use crate::checks::CheckCode;
+    use crate::linter::test_path;
+    use crate::Settings;
+
+    #[test_case(Path::new("combine_import_froms.py"))]
+    #[test_case(Path::new("deduplicate_imports.py"))]
+    #[test_case(Path::new("fit_line_length.py"))]
+    #[test_case(Path::new("import_from_after_import.py"))]
+    #[test_case(Path::new("leading_prefix.py"))]
+    #[test_case(Path::new("no_reorder_within_section.py"))]
+    #[test_case(Path::new("order_by_type.py"))]
+    #[test_case(Path::new("preserve_indentation.py"))]
+    #[test_case(Path::new("reorder_within_section.py"))]
+    #[test_case(Path::new("separate_first_party_imports.py"))]
+    #[test_case(Path::new("separate_future_imports.py"))]
+    #[test_case(Path::new("separate_local_folder_imports.py"))]
+    #[test_case(Path::new("separate_third_party_imports.py"))]
+    #[test_case(Path::new("skip.py"))]
+    #[test_case(Path::new("trailing_suffix.py"))]
+    fn isort(path: &Path) -> Result<()> {
+        let snapshot = format!("{}", path.to_string_lossy());
+        let mut checks = test_path(
+            Path::new("./resources/test/fixtures/isort")
+                .join(path)
+                .as_path(),
+            &Settings {
+                src: vec![Path::new("resources/test/fixtures/isort").to_path_buf()],
+                ..Settings::for_rule(CheckCode::I001)
+            },
+            &fixer::Mode::Generate,
+        )?;
+        checks.sort_by_key(|check| check.location);
+        insta::assert_yaml_snapshot!(snapshot, checks);
+        Ok(())
+    }
+}

src/isort/plugins.rs

@@ -0,0 +1,116 @@
+use rustpython_ast::{Location, Stmt};
+use textwrap::{dedent, indent};
+
+use crate::ast::types::Range;
+use crate::autofix::{fixer, Fix};
+use crate::checks::CheckKind;
+use crate::docstrings::helpers::leading_space;
+use crate::isort::format_imports;
+use crate::{Check, Settings, SourceCodeLocator};
+
+fn extract_range(body: &[&Stmt]) -> Range {
+    let location = body.first().unwrap().location;
+    let end_location = body.last().unwrap().end_location.unwrap();
+    Range {
+        location,
+        end_location,
+    }
+}
+
+fn extract_indentation(body: &[&Stmt], locator: &SourceCodeLocator) -> String {
+    let location = body.first().unwrap().location;
+    let range = Range {
+        location: Location::new(location.row(), 0),
+        end_location: location,
+    };
+    let existing = locator.slice_source_code_range(&range);
+    leading_space(&existing)
+}
+
+fn match_leading_content(body: &[&Stmt], locator: &SourceCodeLocator) -> bool {
+    let location = body.first().unwrap().location;
+    let range = Range {
+        location: Location::new(location.row(), 0),
+        end_location: location,
+    };
+    let prefix = locator.slice_source_code_range(&range);
+    prefix.chars().any(|char| !char.is_whitespace())
+}
+
+fn match_trailing_content(body: &[&Stmt], locator: &SourceCodeLocator) -> bool {
+    let end_location = body.last().unwrap().end_location.unwrap();
+    let range = Range {
+        location: end_location,
+        end_location: Location::new(end_location.row() + 1, 0),
+    };
+    let suffix = locator.slice_source_code_range(&range);
+    suffix.chars().any(|char| !char.is_whitespace())
+}
+
+/// I001
+pub fn check_imports(
+    body: Vec<&Stmt>,
+    locator: &SourceCodeLocator,
+    settings: &Settings,
+    autofix: &fixer::Mode,
+) -> Option<Check> {
+    let range = extract_range(&body);
+    let indentation = extract_indentation(&body, locator);
+
+    // Special-cases: there's leading or trailing content in the import block.
+    let has_leading_content = match_leading_content(&body, locator);
+    let has_trailing_content = match_trailing_content(&body, locator);
+
+    // Generate the sorted import block.
+    let expected = format_imports(
+        body,
+        &settings.line_length,
+        &settings.src,
+        &settings.isort.known_first_party,
+        &settings.isort.known_third_party,
+        &settings.isort.extra_standard_library,
+    );
+
+    if has_leading_content || has_trailing_content {
+        let mut check = Check::new(CheckKind::UnsortedImports, range);
+        if autofix.patch() {
+            let mut content = String::new();
+            if has_leading_content {
+                content.push('\n');
+            }
+            content.push_str(&indent(&expected, &indentation));
+            check.amend(Fix::replacement(
+                content,
+                // Preserve leading prefix (but put the imports on a new line).
+                if has_leading_content {
+                    range.location
+                } else {
+                    Location::new(range.location.row(), 0)
+                },
+                // TODO(charlie): Preserve trailing suffixes. Right now, we strip them.
+                Location::new(range.end_location.row() + 1, 0),
+            ));
+        }
+        Some(check)
+    } else {
+        // Expand the span the entire range, including leading and trailing space.
+        let range = Range {
+            location: Location::new(range.location.row(), 0),
+            end_location: Location::new(range.end_location.row() + 1, 0),
+        };
+        let actual = dedent(&locator.slice_source_code_range(&range));
+        if actual != expected {
+            let mut check = Check::new(CheckKind::UnsortedImports, range);
+            if autofix.patch() {
+                check.amend(Fix::replacement(
+                    indent(&expected, &indentation),
+                    range.location,
+                    range.end_location,
+                ));
+            }
+            Some(check)
+        } else {
+            None
+        }
+    }
+}

src/isort/settings.rs

@@ -0,0 +1,32 @@
+//! Settings for the `isort` plugin.
+
+use std::collections::BTreeSet;
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+#[serde(deny_unknown_fields, rename_all = "kebab-case")]
+pub struct Options {
+    pub known_first_party: Option<Vec<String>>,
+    pub known_third_party: Option<Vec<String>>,
+    pub extra_standard_library: Option<Vec<String>>,
+}
+
+#[derive(Debug, Hash, Default)]
+pub struct Settings {
+    pub known_first_party: BTreeSet<String>,
+    pub known_third_party: BTreeSet<String>,
+    pub extra_standard_library: BTreeSet<String>,
+}
+
+impl Settings {
+    pub fn from_options(options: Options) -> Self {
+        Self {
+            known_first_party: BTreeSet::from_iter(options.known_first_party.unwrap_or_default()),
+            known_third_party: BTreeSet::from_iter(options.known_third_party.unwrap_or_default()),
+            extra_standard_library: BTreeSet::from_iter(
+                options.extra_standard_library.unwrap_or_default(),
+            ),
+        }
+    }
+}

src/isort/snapshots/ruff__isort__tests__combine_import_froms.py.snap

@@ -0,0 +1,22 @@
+---
+source: src/isort/mod.rs
+expression: checks
+---
+- kind: UnsortedImports
+  location:
+    row: 1
+    column: 0
+  end_location:
+    row: 6
+    column: 0
+  fix:
+    patch:
+      content: "from collections import (\n    AsyncIterable,\n    Awaitable,\n    ChainMap,\n    Collection,\n    MutableMapping,\n    MutableSequence,\n)\n"
+      location:
+        row: 1
+        column: 0
+      end_location:
+        row: 6
+        column: 0
+    applied: false
+