## Summary
After we apply fixes, the source code might be transformed. And yet,
we're using the _unmodified_ source code to compute locations in some
cases (e.g., for displaying parse errors, or Jupyter Notebook cells).
This can lead to subtle errors in reporting, or even panics. This PR
modifies the linter to use the _transformed_ source code for such
computations.
Closes https://github.com/astral-sh/ruff/issues/9407.
I just fixed this false negative in flake8-pyi
(https://github.com/PyCQA/flake8-pyi/pull/460), and then realised ruff
has the exact same bug! Luckily it's a very easy fix.
(The bug is that unused protocols go undetected if they're generic.)
## Summary
This is similar to https://github.com/astral-sh/ruff/pull/8876, but more
limited in scope:
1. It only applies to `# fmt: skip` (like Black). Like `# isort: on`, `#
fmt: on` needs to be on its own line (still).
2. It only delimits on `#`, so you can do `# fmt: skip # noqa`, but not
`# fmt: skip - some other content` or `# fmt: skip; noqa`.
If we want to support the `;`-delimited version, we should revisit
later, since we don't support that in the linter (so `# fmt: skip; noqa`
wouldn't register a `noqa`).
Closes https://github.com/astral-sh/ruff/issues/8892.
When formatting notebooks, we populate the `id` field for cells that do
not have one. Previously, we generated a UUID v4 which resulted in
non-deterministic formatting. Here, we generate the UUID from a seeded
random number generator instead of using true randomness. For example,
here are the first five ids it would generate:
```
7fb27b94-1602-401d-9154-2211134fc71a
acae54e3-7e7d-407b-bb7b-55eff062a284
9a63283c-baf0-4dbc-ab1f-6479b197f3a8
8dd0d809-2fe7-4a7c-9628-1538738b07e2
72eea511-9410-473a-a328-ad9291626812
```
We also add a check that an id is not present in another cell to prevent
accidental introduction of duplicate ids.
The specification is lax, and we could just use incrementing integers
e.g. `0`, `1`, ... but I have a minor preference for retaining the UUID
format. Some discussion
[here](https://github.com/astral-sh/ruff/pull/9359#discussion_r1439607121)
— I'm happy to go either way though.
Discovered via #9293
## Summary
Ensures that any lint rules that include line locations render them as
relative to the cell (and include the cell number) when inside a Jupyter
notebook.
Closes https://github.com/astral-sh/ruff/issues/6672.
## Test Plan
`cargo test`
## Summary
Given:
```python
F"{"ڤ
```
We try to locate the "unclosed left brace" error by subtracting the
quote size from the lexer offset -- so we subtract 1 from the end of the
source, which puts us in the middle of a Unicode character. I don't
think we should try to adjust the offset in this way, since there can be
content _after_ the quote. For example, with the advent of PEP 701, this
string could reasonably be fixed as:
```python
F"{"ڤ"}"
````
Closes https://github.com/astral-sh/ruff/issues/9379.
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Fix the colouration of hyperlinks within admonitions on dark theme to be
more readable. Closes#9046
## Test Plan
<!-- How was it tested? -->
Documentation was regenerated via mkdocs and the supplied requirements.
Signed-off-by: 64815328+Eutropios@users.noreply.github.com
## Summary
This PR adds an autofix for the newly added PYI058 rule (added in
#9313). ~~The PR's current implementation is that the fix is only
available if the fully qualified name of `Generator` or `AsyncGenerator`
is being used:~~
- ~~`-> typing.Generator` is converted to `-> typing.Iterator`;~~
- ~~`-> collections.abc.AsyncGenerator[str, Any]` is converted to `->
collections.abc.AsyncIterator[str]`;~~
- ~~but `-> Generator` is _not_ converted to `-> Iterator`. (It would
require more work to figure out if `Iterator` was already imported or
not. And if it wasn't, where should we import it from? `typing`,
`typing_extensions`, or `collections.abc`? It seems much more
complicated.)~~
The fix is marked as always safe for `__iter__` or `__aiter__` methods
in `.pyi` files, but unsafe for all such methods in `.py` files that
have more than one statement in the method body.
This felt slightly fiddly to accomplish, but I couldn't _see_ any
utilities in
https://github.com/astral-sh/ruff/tree/main/crates/ruff_linter/src/fix
that would have made it simpler to implement. Lmk if I'm missing
something, though -- my first time implementing an autofix! :)
## Test Plan
`cargo test` / `cargo insta review`.
## Summary
We had an early `continue` in this loop, and we weren't setting
`comparator = next;` when continuing... This PR removes the early
continue altogether for clarity.
Closes https://github.com/astral-sh/ruff/issues/9374.
## Test Plan
`cargo test`
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## Summary
- Adds timeouts to fuzzer cmin stages in the case of an infinite loop
- Adds executable flag to reinit-fuzzer.sh because it was annoying me
## Test Plan
Not needed.
## Summary
Changes message from `"Relative imports are banned"` to `"Prefer
absolute imports over relative imports from parent modules"`.
Closes#9363.
## Test Plan
`cargo test`
## Summary
This PR modifies our `Cargo.toml` files to use workspace dependencies
for _all_ dependencies, rather than the status quo of sporadically
trying to use workspace dependencies for those dependencies that are
used across multiple crates. I find the current situation more confusing
and harder to manage, since we have a mix of workspace and crate-local
dependencies, whereas this setup consistently uses the same approach for
all dependencies.
## Summary
The `ureq` dev-dependency in the ruff_cli workspace member is unused.
There are no code references to `ureq` in that crate.
## Test Plan
ruff and its tests continues to compile with the dependency removed. :)
The "wsl" crate was last touched in 2019, whereas the "is-wsl" crate was
last updated in 2023. Additionally, it is unclear whether the "wsl"
crate supports both WSL1 and WSL2 (which was announced in 2019), whereas
the "is-wsl" crate explicitly supports both WSL1 and WSL2.
The required code changes are minimal, since both crates provide only a
`is_wsl() -> bool` function.
## Summary
Remove the period from a couple short messages, for consistency with all
other short messages.
All other short rule messages lack such a period, except for long
messages made of multiple sentences.
## Test Plan
Tests modified accordingly.
Not sure if this would qualify as a breaking change because user-visible
messages are modified.
## Summary
This PR implements Y058 from flake8-pyi -- this is a new flake8-pyi rule
that was released as part of `flake8-pyi 23.11.0`. I've followed the
Python implementation as closely as possible (see
858c0918a8),
except that for the Ruff version, the rule also applies to `.py` files
as well as for `.pyi` files. (For `.py` files, we only emit the
diagnostic in very specific situations, however, as there's a much
higher likelihood of emitting false positives when applying this rule to
a `.py` file.)
## Test Plan
`cargo test`/`cargo insta review`
## Summary
Historically, we encoded this list by extracting the `__all__`. I went
to update it, but... is there really any value in it? Seems easier to
just treat `typing_extensions` as an alias for `typing`.
Closes https://github.com/astral-sh/ruff/issues/9334.
## Summary
We stopped releasing this a while ago and no longer advertise it
anywhere. IMO, we should remove it so that we stop paying the cost of
maintaining it. If we want to revive it, we can always do so from Git.
## Summary
This is a non-behavior-changing refactor to follow-up
https://github.com/astral-sh/ruff/pull/9321 by modifying
`DisplayParseError` to use owned data and make it useable as a
standalone error type (rather than using references and implementing
`Display`). I don't feel very strongly either way. I thought it was
awkward that the `FormatCommandError` had two branches in the display
path, and wanted to represent the `Parse` vs. other cases as a separate
enum, so here we are.
## Summary
The logic that detects continuations assumed that tokens themselves
cannot span multiple lines. However, strings _can_ -- even single-quoted
strings.
Closes https://github.com/astral-sh/ruff/issues/9323.
This saves a handful of milliseconds on Windows and even more on other
platforms when running `python -m ruff`. On non-Windows systems the
process is replaced directly (impossible on Windows unfortunately).
```
❯ docker run --rm python:3.11 bash -c "for i in {1..15}; do python -m timeit -n 1 -r 1 'from pathlib import Path'; done"
1 loop, best of 1: 25.7 msec per loop
1 loop, best of 1: 3.07 msec per loop
1 loop, best of 1: 3.16 msec per loop
1 loop, best of 1: 3.06 msec per loop
1 loop, best of 1: 3.32 msec per loop
1 loop, best of 1: 3.93 msec per loop
1 loop, best of 1: 3.26 msec per loop
1 loop, best of 1: 3.73 msec per loop
1 loop, best of 1: 3.1 msec per loop
1 loop, best of 1: 3.29 msec per loop
1 loop, best of 1: 3.12 msec per loop
1 loop, best of 1: 3.05 msec per loop
1 loop, best of 1: 3.04 msec per loop
1 loop, best of 1: 3.19 msec per loop
1 loop, best of 1: 3.04 msec per loop
❯ docker run --rm python:3.11 bash -c "for i in {1..15}; do python -m timeit -n 1 -r 1 'import subprocess'; done"
1 loop, best of 1: 31.2 msec per loop
1 loop, best of 1: 3.75 msec per loop
1 loop, best of 1: 4.71 msec per loop
1 loop, best of 1: 3.88 msec per loop
1 loop, best of 1: 4.08 msec per loop
1 loop, best of 1: 4.35 msec per loop
1 loop, best of 1: 3.94 msec per loop
1 loop, best of 1: 4.06 msec per loop
1 loop, best of 1: 3.88 msec per loop
1 loop, best of 1: 3.85 msec per loop
1 loop, best of 1: 3.84 msec per loop
1 loop, best of 1: 4.01 msec per loop
1 loop, best of 1: 4.21 msec per loop
1 loop, best of 1: 4.07 msec per loop
1 loop, best of 1: 4.11 msec per loop
❯ python -m timeit -n 1 -r 1 "from pathlib import Path"
1 loop, best of 1: 5.25 msec per loop
❯ python -m timeit -n 1 -r 1 "import subprocess"
1 loop, best of 1: 7.61 msec per loop
```
## Summary
I always found it odd that we had to pass this in, since it's really
higher-level context for the error. The awkwardness is further evidenced
by the fact that we pass in fake values everywhere (even outside of
tests). The source path isn't actually used to display the error; it's
only accessed elsewhere to _re-display_ the error in certain cases. This
PR modifies to instead pass the path directly in those cases.
## Summary
This PR modifies the semantics of `runtime-evaluated-decorators` to
respect decorators on both classes _and_ functions. Historically, this
only respected classes, since the common use-case is (e.g.)
`pydantic.BaseModel` -- but functions are equally valid.
Closes https://github.com/astral-sh/ruff/issues/9312.
## Test Plan
`cargo test`
## Summary
This helps a bit with (but does not close) the issues described in
https://github.com/astral-sh/ruff/issues/9311. E.g., now, we at least
see: `error: Failed to format main.py: source contains syntax errors:
invalid syntax. Got unexpected token '=' at byte offset 20`.
## Summary
Given:
```python
from somewhere import get_cfg
def lookup_cfg(cfg_description):
cfg = get_cfg(cfg_description)
if cfg is not None:
return cfg
raise AttributeError(f"No cfg found matching {cfg_description}")
```
We were analyzing the method from last-to-first statement. So we saw the
`raise`, then assumed the method _always_ raised. In reality, though, it
_might_ return. This PR improves the branch analysis to respect these
mixed cases.
Closes https://github.com/astral-sh/ruff/issues/9269.
Closes https://github.com/astral-sh/ruff/issues/9304.
## Summary
Remove `:` for PLR0917 to make all PLR09XX message look the same
```
PLR0904 Too many public methods (21 > 20)
PLR0911 Too many return statements (16 > 6)
PLR0912 Too many branches (13 > 12)
PLR0913 Too many arguments in function definition (10 > 5)
PLR0915 Too many statements (118 > 50)
PLR0917 Too many positional arguments: (15/5)
```
## Test Plan
<!-- How was it tested? -->
---------
Signed-off-by: Mikael Arguedas <mikael.arguedas@gmail.com>
## Summary
Part of #970.
This adds Pylint's [R0244
empty_comment](https://pylint.pycqa.org/en/latest/user_guide/messages/refactor/empty-comment.html)
lint as well as an always-safe fix.
## Test Plan
The included snapshot verifies the following:
- A line containing only a non-empty comment is not changed
- A line containing leading whitespace before a non-empty comment is not
changed
- A line containing only an empty comment has its content deleted
- A line containing only leading whitespace before an empty comment has
its content deleted
- A line containing only leading and trailing whitespace on an empty
comment has its content deleted
- A line containing trailing whitespace after a non-empty comment is not
changed
- A line containing only a single newline character (i.e. a blank line)
is not changed
- A line containing code followed by a non-empty comment is not changed
- A line containing code followed by an empty comment has its content
deleted after the last non-whitespace character
- Lines containing code and no comments are not changed
- Empty comment lines within block comments are ignored
- Empty comments within triple-quoted sections are ignored
## Comparison to Pylint
Running Ruff and Pylint 3.0.3 with Python 3.12.0 against the
`empty_comment.py` file added in this PR, we see the following:
* Identical behavior:
* empty_comment.py:3:0: R2044: Line with empty comment (empty-comment)
* empty_comment.py:4:0: R2044: Line with empty comment (empty-comment)
* empty_comment.py:5:0: R2044: Line with empty comment (empty-comment)
* empty_comment.py:18:0: R2044: Line with empty comment (empty-comment)
* Differing behavior:
* Pylint doesn't ignore empty comments in block comments commonly used
for visual spacing; I decided these were fine in this implementation
since many projects use these and likely do not want them removed.
* empty_comment.py:28:0: R2044: Line with empty comment (empty-comment)
* Pylint detects "empty comments" within the triple-quoted section at
the bottom of the file, which is arguably a bug in the Pylint
implementation since these are not truly comments. These are ignored by
this implementation.
* empty_comment.py:37:0: R2044: Line with empty comment (empty-comment)
* empty_comment.py:38:0: R2044: Line with empty comment (empty-comment)
* empty_comment.py:39:0: R2044: Line with empty comment (empty-comment)
Adds the ability to override `ruff.toml` or `pyproject.toml` settings
per-project during ecosystem checks.
Exploring this as a fix for the `setuptools` project error.
Also useful for including Jupyter Notebooks in the ecosystem checks, see
#9293
Note the remaining `sphinx` project error is resolved in #9294
Failing due to
> error: Failed to read tests/roots/test-pycode/cp_1251_coded.py: stream
did not contain valid UTF-8
Unclear to me if ignoring is the correct response.
## Summary
If a rule ends with a trailing placeholder (like "Use {target}"), that
gets interpreted as an HTML attribute adding, `target="target"` to the
node. This PR escapes such cases. In reality, they're rare, since we
almost always wrap placeholders in backticks, which avoids this problem
-- but in some cases, they are in fact correct to be un-backticked.
Closes https://github.com/astral-sh/ruff/issues/9288.
## Test Plan
<img width="673" alt="Screen Shot 2023-12-28 at 9 33 40 AM"
src="https://github.com/astral-sh/ruff/assets/1309177/14aaa168-c802-4258-b82d-217a85b42ebf">
## Summary
Hey there 👋 thanks for this great project!
On python code looking like the following
```
import yaml
from yaml.loader import SafeLoader
with MY_FILE_PATH.open("r") as my_file:
my_data = yaml.load(my_file, Loader=SafeLoader)
```
ruff reports this error:
```
S506 Probable use of unsafe loader `SafeLoader` with `yaml.load`. Allows instantiation of arbitrary objects. Consider `yaml.safe_load`.
```
This PR is an attempt to support SafeLoader being imported for either
`yaml` or `yaml.loader`
Disclaimer:
I am not familiar with Rust so this is likely not the better way of
doing it. Interested in hearing how to adapt this PR to provide similar
behavior in a better way
## Test Plan
The S506.py file was updated accordingly to cover the use cases and test
were confirmed to pass with this change.
## Summary
If `RUF100` is ignored via `per-file-ignores`, we need to avoid raising
it. `RUF100` has special "self-ignore" logic, since the rule itself
deals with `# noqa` directives. This PR wires up `per-file-ignores` to
that "self-ignore" logic.
Closes https://github.com/astral-sh/ruff/issues/9297.
We should avoid adding `-> None` to stubs in `.pyi` files, along with a
few other cases. (We already ignore abstract methods.)
Closes https://github.com/astral-sh/ruff/issues/9270.
## Summary
This PR adds some helper structs to the linter paths to enable passing
in the pre-computed tokens and parsed source code during benchmarking,
to remove lexing and parsing from the overall linter benchmark
measurement. We already remove parsing for the formatter, and we have
separate benchmarks for the lexer and the parser, so this should make it
much easier to measure linter performance changes.
## Summary
Adds a rule to detect unions that include `typing.NoReturn` or
`typing.Never`. In such cases, the use of the bottom type is redundant.
Closes https://github.com/astral-sh/ruff/issues/9113.
## Test Plan
`cargo test`
This should have been done before the actual release, so we add another
step to `CONTRIBUTING.md` to make sure it gets done in the future.
This doesn't fix https://github.com/astral-sh/ruff/issues/9234
completely, but it's a step in the right direction.
## Summary
fixes#6956
details in issue
Following an advice in
https://github.com/astral-sh/ruff/issues/6956#issuecomment-1817672585,
this change separates expressions to 3 levels of "constant likelihood":
* literals, empty dict and tuples... (definitely constant, level 2)
* CONSTANT_CASE vars (probably constant, 1)
* all other expressions (0)
a comparison is marked yoda if the level is strictly higher on its left
hand side
following
https://github.com/astral-sh/ruff/issues/6956#issuecomment-1697107822
marking compound expressions of literals (e.g. `60 * 60` ) as constants
this change current behaviour on
`SomeClass().settings.SOME_CONSTANT_VALUE > (60 * 60)` in the fixture
from error to ok
## Summary
Given a function like:
```python
def func(x: int):
if not x:
raise ValueError
else:
raise TypeError
```
We now correctly use `NoReturn` as the return type, rather than `None`.
Closes https://github.com/astral-sh/ruff/issues/9201.
## Summary
Part of #8771. flake8-pyi will emit a Y018 error for unused TypeVars,
ParamSpecs or TypeVarTuples; Ruff currently only emits PYI018 for unused
TypeVars.
This is my first "proper" Ruff PR -- let me know if there's a better way
of doing this! Not sure if the repeated calls to `match_typing_expr()`
are ideal.
## Test Plan
I manually updated the fixtures to add some unused ParamSpecs and
TypeVarTuples, and then updated the snapshots using `cargo insta
review`. All tests then passed when run using `cargo test`.
We've had bugs related to non-latin scripts, most recently #9145, where
just starting a docstring with multi-byte characters would panic. I've
added https://github.com/binary-husky/gpt_academic to catch those in the
ecosystem checks, it's a popular repo with mixed english and chinese
comments and symbols.
Bumps
[dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact)
from 2 to 3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
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<blockquote>
<h2>v3.0.0</h2>
<p>Node was updated from 16 to 20.
Node 20 requires <code>glibc>=2.28</code>.</p>
<h2>v2.28.0</h2>
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<h2>v2.27.0</h2>
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<h2>v2.26.1</h2>
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<h2>v2.26.0</h2>
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<h2>v2.24.4</h2>
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<h2>v2.24.3</h2>
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<h2>v2.24.2</h2>
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<h2>v2.24.0</h2>
<p>No release notes provided.</p>
<h2>v2.23.0</h2>
<p>No release notes provided.</p>
<h2>v2.22.0</h2>
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<h2>v2.21.1</h2>
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<h2>v2.21.0</h2>
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<h2>v2.20.0</h2>
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<h2>v2.19.0</h2>
<p>No release notes provided.</p>
<h2>v2.18.0</h2>
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<p>... (truncated)</p>
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<details>
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build(deps): bump <code>@actions/artifact</code> from 1.1.2 to 2.0.0
(<a
href="https://redirect.github.com/dawidd6/action-download-artifact/issues/260">#260</a>)</li>
<li><a
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node_modules: upgrade</li>
<li><a
href="587cee61f5"><code>587cee6</code></a>
action: node16 -> node20 (<a
href="https://redirect.github.com/dawidd6/action-download-artifact/issues/259">#259</a>)</li>
<li><a
href="1cf761fba6"><code>1cf761f</code></a>
build(deps): bump undici from 5.25.4 to 5.28.2 (<a
href="https://redirect.github.com/dawidd6/action-download-artifact/issues/258">#258</a>)</li>
<li><a
href="d44631c448"><code>d44631c</code></a>
build(deps): bump <code>@actions/github</code> from 5.1.1 to 6.0.0 (<a
href="https://redirect.github.com/dawidd6/action-download-artifact/issues/252">#252</a>)</li>
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Bumps [unicode_names2](https://github.com/progval/unicode_names2) from
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<details>
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<blockquote>
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<p><em>2023-12-14</em></p>
<p>Internal:</p>
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
New messages for "format" mode.
Fixes#9132
## Test Plan
<!-- How was it tested? -->
I ran the tests specified in `CONTRIBUTING.md`
```bash
cargo run -p ruff_cli -- check /path/to/some_files.py --no-cache
cargo run -p ruff_cli -- format --check /path/to/some_files.py --no-cache
cargo clippy --workspace --all-targets --all-features -- -D warnings
RUFF_UPDATE_SCHEMA=1 cargo test
pre-commit run --all-files --show-diff-on-failure
```
**Note:** In case no files are detected, either correctly formatted,
changed, or unchanged, it does not display a message. Wouldn't it be
better to show some message in this case?
## Summary
Given `Callable[[Callable[_P, _R]], Callable[_P, _R]]` from the
originating issue, when quoting `Callable`, we quoted the inner
`[Callable[_P, _R]]`, and then created a separate edit for the outer
`Callable`. Since there's an extra level of nesting in the subscript,
the edit for `[Callable[_P, _R]]` correctly did _not_ expand to the
entire expression. However, in this case, we should discard the inner
edit, since the expression is getting quoted by the outer edit anyway.
Closes https://github.com/astral-sh/ruff/issues/9162.
## Summary
A common mistake is to add quotes around one member in an `X | Y`-style
type union, as in:
```python
contract_versions_list: list[ContractVersion] | 'QuerySet[ContractVersion]' | None = None
```
However, doing so will lead to a runtime error if the annotation is
runtime-evaluated. This PR lints against such patterns.
Closes https://github.com/astral-sh/ruff/issues/9139.
## Summary
Fix dropped union expressions for piped non-types in `PYI055` autofix
If you had `type[int] | type[str] | str`, it would have dropped the
`str`, which breaks the type!
Closes#9156
## Test Plan
`cargo test`
Instead of displaying the total completed project count in the "changed"
section of a header, we now separately calculated the changed and
unchanged count to make the header message nice and clear.
e.g.
> ℹ️ ecosystem check **detected format changes**. (+1772 -1859 lines in
239 files in 26 projects; 6 project errors; 9 projects unchanged)
and
> ℹ️ ecosystem check **detected linter changes**. (+4598 -5023
violations, +0 -40 fixes in 13 projects; 4 project errors; 24 projects
unchanged)
Previously, it would have included the unchanged count in the first
project count.
Fix#9080
Example, where `[]` is a 2 byte non-breaking space:
```
def f():
""" Docstring header
^^^^ Real indentation is 4 chars
docstring body, over-indented
^^^^^^ Over-indentation is 6 - 4 = 2 chars due to this line
[] [] docstring body 2, further indented
^^^^^ We take these 4 chars/5 bytes to match the docstring ...
^^^ ... and these 2 chars/3 bytes to remove the `over_indented_size` ...
^^ ... but preserve this real indent
```
The example below used to panic because we tried to split at 2 bytes in
the 4-bytes character `转`.
```python
def sample_func(xx):
"""
转置 (transpose)
"""
return xx.T
```
Fixes#9145
Fixes https://github.com/astral-sh/ruff-vscode/issues/362
The second commit is a small test refactoring.
This sets `lto = "thin"` instead of using "fat" LTO, and sets
`codegen-units = 16`. These are the defaults for Cargo's `release`
profile, and I think it may give us faster iteration times, especially
when benchmarking. The point of this PR is to see what kind of impact
this has on benchmarks. It is expected that benchmarks may regress to
some extent.
I did some quick ad hoc experiments to quantify this change in compile
times. Namely, I ran:
cargo build --profile release -p ruff_cli
Then I ran
touch crates/ruff_python_formatter/src/expression/string/docstring.rs
(because that's where i've been working lately) and re-ran
cargo build --profile release -p ruff_cli
This last command is what I timed, since it reflects how much time one
has to wait between making a change and getting a compiled artifact.
Here are my results:
* With status quo `release` profile, build takes 77s
* with `release` but `lto = "thin"`, build takes 41s
* with `release`, but `lto = false`, build takes 19s
* with `release`, but `lto = false` **and** `codegen-units = 16`, build
takes 7s
* with `release`, but `lto = "thin"` **and** `codegen-units = 16`, build
takes 16s (i believe this is the default `release` configuration)
This PR represents the last option. It's not the fastest to compile, but
it's nearly a whole minute faster! The idea is that with `codegen-units
= 16`, we still make use of parallelism, but keep _some_ level of LTO on
to try and re-gain what we lose by increasing the number of codegen
units.
## Summary
Add new test cases for `with_item` and `match` sequence that demonstrate how long headers break.
Removes one use of `optional_parentheses` in a position where it is know that the parentheses always need to be added.
## Test Plan
cargo test
## Summary
Add some more documentation to `can_omit_optional_parentheses` because it is realy hard to understand.
Restrict the `Attribute` and `None` `OperatorPrecedence` branches to ensure they only get applyied to the intended nodes.
## Test Plan
Ecosystem check reports no differences. The compatibility index remains unchanged.
Given:
```python
x: DataFrame[
int
] = 1
```
We currently wrap the annotation in single quotes, which leads to a
syntax error:
```python
x: "DataFrame[
int
]" = 1
```
There are a few options for what to suggest for users here... Use triple
quotes:
```python
x: """DataFrame[
int
]""" = 1
```
Or, use an implicit string concatenation (which may require
parentheses):
```python
x: ("DataFrame["
"int"
"]") = 1
```
The solution I settled on here is to use the `Generator`, which
effectively means we write it out on a single line, like:
```python
x: "DataFrame[int]" = 1
```
It's kind of the "least opinionated" solution, but it does mean we'll
expand to a very long line in some cases.
Closes https://github.com/astral-sh/ruff/issues/9136.
This PR splits the string formatting code in the formatter to be handled
by the respective nodes.
Previously, the string formatting was done through a single
`FormatString` interface. Now, the nodes themselves are responsible for
formatting.
The following changes were made:
1. Remove `StringLayout::ImplicitStringConcatenationInBinaryLike` and
inline the call to `FormatStringContinuation`. After the refactor, the
binary like formatting would delegate to `FormatString` which would then
delegate to `FormatStringContinuation`. This removes the intermediary
steps.
2. Add formatter implementation for `FStringPart` which delegates it to
the respective string literal or f-string node.
3. Add `ExprStringLiteralKind` which is either `String` or `Docstring`.
If it's a docstring variant, then the string expression would not be
implicitly concatenated. This is guaranteed by the
`DocstringStmt::try_from_expression` constructor.
4. Add `StringLiteralKind` which is either a `String`, `Docstring` or
`InImplicitlyConcatenatedFString`. The last variant is for when the
string literal is implicitly concatenated with an f-string (`"foo" f"bar
{x}"`).
5. Remove `FormatString`.
6. Extract the f-string quote detection as a standalone function which
is public to the crate. This is used to detect the quote to be used for
an f-string at the expression level (`ExprFString` or
`FormatStringContinuation`).
### Formatter ecosystem result
**This PR**
| project | similarity index | total files | changed files |
|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1648 |
| django | 0.99984 | 2772 | 34 |
| home-assistant | 0.99955 | 10596 | 214 |
| poetry | 0.99905 | 321 | 15 |
| transformers | 0.99967 | 2657 | 324 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99976 | 654 | 14 |
| zulip | 0.99958 | 1459 | 36 |
**main**
| project | similarity index | total files | changed files |
|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1648 |
| django | 0.99984 | 2772 | 34 |
| home-assistant | 0.99955 | 10596 | 214 |
| poetry | 0.99905 | 321 | 15 |
| transformers | 0.99967 | 2657 | 324 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99976 | 654 | 14 |
| zulip | 0.99958 | 1459 | 36 |
This fixes a bug where the current indent level was not calculated
correctly for doctests. Namely, it didn't account for the extra indent
level (in terms of ASCII spaces) used by by the PS1 (`>>> `) and PS2
(`... `) prompts. As a result, lines could extend up to 4 spaces beyond
the configured line length limit.
We fix that by passing the `CodeExampleKind` to the `format` routine
instead of just the code itself. In this way, `format` can query whether
there will be any extra indent added _after_ formatting the code and
take that into account for its line length setting.
We add a few regression tests, taken directly from @stinodego's
examples.
Fixes#9126
This PR does the plumbing to make a new formatting option,
`docstring-code-format`, available in the configuration for end users.
It is disabled by default (opt-in). It is opt-in at least initially to
reflect a conservative posture. The intent is to make it opt-out at some
point in the future.
This was split out from #8811 in order to make #8811 easier to merge.
Namely, once this is merged, docstring code snippet formatting will
become available to end users. (See comments below for how we arrived at
the name.)
Closes#7146
## Test Plan
Other than the standard test suite, I ran the formatter over the CPython
and polars projects to ensure both that the result looked sensible and
that tests still passed. At time of writing, one issue that currently
appears is that reformatting code snippets trips the long line lint:
https://github.com/BurntSushi/polars/actions/runs/7006619426/job/19058868021
This PR adds a `as_slice` method to all the string nodes which returns
all the parts of the nodes as a slice. This will be useful in the next
PR to split the string formatting to use this method to extract the
_single node_ or _implicitly concanated nodes_.
## Summary
Adds support for sarif v2.1.0 output to cli, usable via the
output-format paramter.
`ruff . --output-format=sarif`
Includes a few changes I wasn't sure of, namely:
* Adds a few derives for Clone & Copy, which I think could be removed
with a little extra work as well.
## Test Plan
I built and ran this against several large open source projects and
verified that the output sarif was valid, using [Microsoft's SARIF
validator tool](https://sarifweb.azurewebsites.net/Validation)
I've also attached an output of the sarif generated by this version of
ruff on the main branch of django at commit: b287af5dc9
[django_main_b287af5dc9_sarif.json](https://github.com/astral-sh/ruff/files/13626222/django_main_b287af5dc9_sarif.json)
Note: this needs to be regenerated with the latest changes and
confirmed.
## Open Points
[ ] Convert to just using all Rules all the time
[ ] Fix the issue with getting the file URI when compiling for web
assembly
## Summary
This allows us to fix usages like:
```python
from pandas import DataFrame
def baz() -> DataFrame:
...
```
By quoting the `DataFrame` in `-> DataFrame`. Without quotes, moving
`from pandas import DataFrame` into an `if TYPE_CHECKING:` block will
fail at runtime, since Python tries to evaluate the annotation to add it
to the function's `__annotations__`.
Unfortunately, this does require us to split our "annotation kind" flags
into three categories, rather than two:
- `typing-only`: The annotation is only evaluated at type-checking-time.
- `runtime-evaluated`: Python will evaluate the annotation at runtime
(like above) -- but we're willing to quote it.
- `runtime-required`: Python will evaluate the annotation at runtime
(like above), and some library (like Pydantic) needs it to be available
at runtime, so we _can't_ quote it.
This functionality is gated behind a setting
(`flake8-type-checking.quote-annotations`).
Closes https://github.com/astral-sh/ruff/issues/5559.
## Summary
Adds `find_assigned_value` a function which gets the `&Expr` assigned to
a given `id` if one exists in the semantic model.
Open TODOs:
- [ ] Handle `binding.kind.is_unpacked_assignment()`: I am bit confused
by this one. The snippet from its documentation does not appear to be
counted as an unpacked assignment and the only ones I could find for
which that was true were invalid Python like:
```python
x, y = 1
```
- [ ] How to handle AugAssign. Can we combine statements like:
```python
(a, b) = [(1, 2, 3), (4,)]
a += (6, 7)
```
to get the full value for a? Code currently just returns `None` for
these assign types
- [ ] Multi target assigns
```python
m_c = (m_d, m_e) = (0, 0)
trio.sleep(m_c) # OK
trio.sleep(m_d) # TRIO115
trio.sleep(m_e) # TRIO115
```
## Test Plan
Used the function in two rules:
- `TRIO115`
- `PERF101`
Expanded both their fixtures for explicit multi target check
## Summary
A fairly common pattern which triggers F841 is unused variables from
tuple assignments, e.g.:
user, created = User.objects.get_or_create(...)
^ F841: Local variable `created` is assigned to but never used
This error is currently not auto-fixable.
This PR adds support for fixing the error automatically by renaming the
unused variable to have a leading underscore (i.e. `_created`) **iff**
the `dummy-variable-rgx` setting would match it.
I considered using `renamers::Renamer` here, but because by the nature
of the error there should be no references to it, that seemed like
overkill. Also note that the fix might break by shadowing the new name
if it is already used elsewhere in the scope. I left it as is because
1. the renamed variable matches the "unused" regex, so it should
hopefully not already be used,
2. the fix is marked as unsafe so it should be reviewed manually
anyways, and
3. I'm not actually sure how to check the scope for the new variable
name 😅
## Summary
This PR changes the internal `docstring-code-line-width` setting to
additionally accept a string value `dynamic`. When `dynamic` is set, the
line width is dynamically adjusted when reformatting code snippets in
docstrings based on the indent level of the docstring. The result is
that the reformatted lines from the code snippet should not exceed the
"global" line width configuration for the surrounding source.
This PR does not change the default behavior, although I suspect the
default should probably be `dynamic`.
## Test Plan
I added a new configuration to the existing docstring code tests and
also added a new set of tests dedicated to the new `dynamic` mode.
Hides hints about unsafe fixes when they are disabled e.g. with
`--no-unsafe-fixes` or `unsafe-fixes = false`. By default, unsafe fix
hints are still displayed. This seems like a nice way to remove the nag
for users who have chosen not to apply unsafe fixes.
Inspired by comment at
https://github.com/astral-sh/ruff/issues/9063#issuecomment-1850289675
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Check floating-point numbers similarly to integers in FURB163. For
example, both `math.log(x, 10)` and `math.log(x, 10.0)` should be
changed to `math.log10(x)`.
## Test Plan
<!-- How was it tested? -->
Added couple of test cases.
## Summary
E274 currently flags any keyword at the start of a line indented with
tabs. This turns out to be due to a bug in `Whitespace::trailing` that
never considers any whitespace containing a tab as indentation.
## Test Plan
Added a simple test case.
This PR allows `matplotlib.use` calls to intersperse imports without
triggering `E402`. This is a pragmatic choice as it's common to require
`matplotlib.use` calls prior to importing from within `matplotlib`
itself.
Closes https://github.com/astral-sh/ruff/issues/9091.
## Summary
This does the light plumbing necessary to add a new internal option that
permits setting the line width of code examples in docstrings. The plan
is to add the corresponding user facing knob in #8854.
Note that this effectively removes the `same-as-global` configuration
style discussed [in this
comment](https://github.com/astral-sh/ruff/issues/8855#issuecomment-1847230440).
It replaces it with the `{integer}` configuration style only.
There are a lot of commits here, but they are each tiny to make review
easier because of the changes to snapshots.
## Test Plan
I added a new docstring test configuration that sets
`docstring-code-line-width = 60` and examined the differences.
Bumps
[serde-wasm-bindgen](https://github.com/RReverser/serde-wasm-bindgen)
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<details>
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## Summary
In https://github.com/astral-sh/ruff/pull/8921, we changed our parameter
formatting behavior to add a trailing comma whenever a single-argument
function breaks. This introduced a deviation in the case that a function
contains a single argument, but _also_ includes a positional-only or
keyword-only separator.
Closes https://github.com/astral-sh/ruff/issues/9074.
## Summary
Fixes#8863 : Detect asyncio-dangling-task (RUF006) when discarding
return value
## Test Plan
added new two testcases, changed result of an old one that was made more
specific
## Summary
Fix a couple typos:
- I'm certain about `It's is` → `It is`.
- Not sure about `is it's` → `if it's` because I don't understand the
sentence.
## Test Plan
No tests.
## Summary
This PR updates the logic for `is_magic_cell` to include certain cell
magics. These cell magics would contain Python code following the line
defining the command. The code could define a variable which can then be
referenced in other cells. Currently, we would ignore the cell
completely leading to undefined-name violation.
As discussed in
https://github.com/astral-sh/ruff/issues/8354#issuecomment-1832221009
## Test Plan
Add new test case to validate this scenario.
(This is not possible to actually use until
https://github.com/astral-sh/ruff/pull/8854 is merged.)
This commit slots in support for formatting Markdown fenced code
blocks[1]. With the refactoring done for reStructuredText previously,
this ended up being pretty easy to add. Markdown code blocks are also
quite a bit easier to parse and recognize correctly.
One point of contention in #8860 is whether to assume that unlabeled
Markdown code fences are Python or not by default. In this PR, we make
such an assumption. This follows what `rustdoc` does. The mitigation
here is that if an unlabeled code block isn't Python, then it probably
won't parse as Python. And we'll end up skipping it. So in the vast
majority of cases, the worst thing that can happen is a little bit of
wasted work.
Closes#8860
[1]: https://spec.commonmark.org/0.30/#fenced-code-blocks
## Summary
It's common to interleave a `sys.path` modification between imports at
the top of a file. This is a frequent cause of `# noqa: E402` false
positives, as seen in the ecosystem checks. This PR modifies E402 to
omit such modifications when determining the "import boundary".
(We could consider linting against `sys.path` modifications, but that
should be a separate rule.)
Closes: https://github.com/astral-sh/ruff/issues/5557.
## Summary
This PR introduces a new `StringLike` enum which is a narrow type to
indicate string-like nodes. These includes the string literals, bytes
literals, and the literal parts of f-strings.
The main motivation behind this is to avoid repetition of rule calling
in the AST checker. We add a new `analyze::string_like` function which
takes in the enum and calls all the respective rule functions which
expects atleast 2 of the variants of this enum.
I'm open to discarding this if others think it's not that useful at this
stage as currently only 3 rules require these nodes.
As suggested
[here](https://github.com/astral-sh/ruff/pull/8835#discussion_r1414746934)
and
[here](https://github.com/astral-sh/ruff/pull/8835#discussion_r1414750204).
## Test Plan
`cargo test`
Rebase of #6365 authored by @davidszotten.
## Summary
This PR updates the AST structure for an f-string elements.
The main **motivation** behind this change is to have a dedicated node
for the string part of an f-string. Previously, the existing
`ExprStringLiteral` node was used for this purpose which isn't exactly
correct. The `ExprStringLiteral` node should include the quotes as well
in the range but the f-string literal element doesn't include the quote
as it's a specific part within an f-string. For example,
```python
f"foo {x}"
# ^^^^
# This is the literal part of an f-string
```
The introduction of `FStringElement` enum is helpful which represent
either the literal part or the expression part of an f-string.
### Rule Updates
This means that there'll be two nodes representing a string depending on
the context. One for a normal string literal while the other is a string
literal within an f-string. The AST checker is updated to accommodate
this change. The rules which work on string literal are updated to check
on the literal part of f-string as well.
#### Notes
1. The `Expr::is_literal_expr` method would check for
`ExprStringLiteral` and return true if so. But now that we don't
represent the literal part of an f-string using that node, this improves
the method's behavior and confines to the actual expression. We do have
the `FStringElement::is_literal` method.
2. We avoid checking if we're in a f-string context before adding to
`string_type_definitions` because the f-string literal is now a
dedicated node and not part of `Expr`.
3. Annotations cannot use f-string so we avoid changing any rules which
work on annotation and checks for `ExprStringLiteral`.
## Test Plan
- All references of `Expr::StringLiteral` were checked to see if any of
the rules require updating to account for the f-string literal element
node.
- New test cases are added for rules which check against the literal
part of an f-string.
- Check the ecosystem results and ensure it remains unchanged.
## Performance
There's a performance penalty in the parser. The reason for this remains
unknown as it seems that the generated assembly code is now different
for the `__reduce154` function. The reduce function body is just popping
the `ParenthesizedExpr` on top of the stack and pushing it with the new
location.
- The size of `FStringElement` enum is the same as `Expr` which is what
it replaces in `FString::format_spec`
- The size of `FStringExpressionElement` is the same as
`ExprFormattedValue` which is what it replaces
I tried reducing the `Expr` enum from 80 bytes to 72 bytes but it hardly
resulted in any performance gain. The difference can be seen here:
- Original profile: https://share.firefox.dev/3Taa7ES
- Profile after boxing some node fields:
https://share.firefox.dev/3GsNXpD
### Backtracking
I tried backtracking the changes to see if any of the isolated change
produced this regression. The problem here is that the overall change is
so small that there's only a single checkpoint where I can backtrack and
that checkpoint results in the same regression. This checkpoint is to
revert using `Expr` to the `FString::format_spec` field. After this
point, the change would revert back to the original implementation.
## Review process
The review process is similar to #7927. The first set of commits update
the node structure, parser, and related AST files. Then, further commits
update the linter and formatter part to account for the AST change.
---------
Co-authored-by: David Szotten <davidszotten@gmail.com>
## Summary
Occasionally, valid code needs to use `argparse._SubParsersAction` in a
type annotation. This isn't great, but it's indicative of the fact that
public interfaces can return private types. If you accessed that private
type via a private interface, then we should be flagging the call site,
rather than the annotation.
Closes https://github.com/astral-sh/ruff/issues/9013.
## Summary
This PR updates the `ANN201`, `ANN202`, `ANN205`, and `ANN206` rules to
not create a fix for the return type when it's an abstract method and
the function body is empty i.e., it only contains either a pass
statement, docstring or an ellipsis literal.
fixes: #9004
## Test Plan
Add the following test cases:
- Abstract method with pass statement
- Abstract method with docstring
- Abstract method with ellipsis literal
- Abstract method with possible return type
## Summary
Add a release's version number to the names of archives containing
binaries that are attached to that GitHub release.
This makes it possible for users to easily tell archives from different
downloaded releases apart.
See also: #8961
## Test Plan
The workflow was tested in my fork. The example release can be found at:
[https://github.com/tobbez/ruff/releases/tag/v0.1.7](https://github.com/tobbez/ruff/releases/tag/v0.1.7).
To allow the workflow run to succeed in the fork while testing, I had to
use a small commit to prevent interaction with external services (ghcr,
PyPI, and the ruff-pre-commit repository):
```diff
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 86eac6ebc..56b9fa908 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -463,10 +463,12 @@ jobs:
id-token: write
steps:
- uses: actions/download-artifact@v3
+ if: false
with:
name: wheels
path: wheels
- name: Publish to PyPi
+ if: false
uses: pypa/gh-action-pypi-publish@release/v1
with:
skip-existing: true
@@ -517,6 +519,7 @@ jobs:
tag_name: v${{ inputs.tag }}
docker-publish:
+ if: false
# This action doesn't need to wait on any other task, it's easy to re-tag if something failed and we're validating
# the tag here also
name: Push Docker image ghcr.io/astral-sh/ruff
@@ -575,6 +578,7 @@ jobs:
# After the release has been published, we update downstream repositories
# This is separate because if this fails the release is still fine, we just need to do some manual workflow triggers
update-dependents:
+ if: false
name: Update dependents
runs-on: ubuntu-latest
needs: publish-release
```
Those workflow jobs are however not modified by this PR, so they should
not be affected.
(This is not possible to actually use until
https://github.com/astral-sh/ruff/pull/8854 is merged.)
ruff_python_formatter: add reStructuredText docstring formatting support
This commit makes use of the refactoring done in prior commits to slot
in reStructuredText support. Essentially, we add a new type of code
example and look for *both* literal blocks and code block directives.
Literal blocks are treated as Python by default because it seems to be a
[common
practice](https://github.com/adamchainz/blacken-docs/issues/195).
That is, literal blocks like this:
```
def example():
"""
Here's an example::
foo( 1 )
All done.
"""
pass
```
Will get reformatted. And code blocks (via reStructuredText directives)
will also get reformatted:
```
def example():
"""
Here's an example:
.. code-block:: python
foo( 1 )
All done.
"""
pass
```
When looking for a code block, it is possible for it to become invalid.
In which case, we back out of looking for a code example and print the
lines out as they are. As with doctest formatting, if reformatting the
code would result in invalid Python or if the code collected from the
block is invalid, then formatting is also skipped.
A number of tests have been added to check both the formatting and
resetting behavior. Mixed indentation is also tested a fair bit, since
one of my initial attempts at dealing with mixed indentation ended up
not working.
I recommend working through this PR commit-by-commit. There is in
particular a somewhat gnarly refactoring before reST support is added.
Closes#8859
This PR renames the semantic model flag `LITERAL` to `TYPING_LITERAL` to
better reflect its purpose. The main motivation behind this change is to
avoid any confusion with the "literal" terminology used in the AST for
literal nodes like string, bytes, numbers, etc.
## Summary
We should avoid inlining the ellipsis in:
```python
def h():
...
# bye
```
Just as we omit the ellipsis in:
```python
def h():
# bye
...
```
Closes https://github.com/astral-sh/ruff/issues/8905.
## Summary
If a string has a Unicode prefix, we can't add the `r` prefix on top of
that -- we need to remove and replace it. (The Unicode prefix is
redundant anyway in Python 3.)
Closes https://github.com/astral-sh/ruff/issues/8967.
## Summary
Check PEP 695 type alias definitions for `snake-case-type-alias`
(`PYI042`) and `t-suffixed-type-alias` (`PYI043`)
Related to #8771.
## Test Plan
`cargo test`
## Summary
For `t-suffixed-type-alias` to trigger, the type alias needs to be
marked as such using the `typing.TypeAlias` annotation and the name of
the alias must be marked as private using a leading underscore. The
documentation example was of an unannotated type alias that was not
marked as private, which was misleading.
## Test Plan
The current example doesn't trigger the rule; the example in this merge
request does.
## Summary
This PR adds the command to run ruff using [pkgx](https://pkgx.sh).
<!-- What's the purpose of the change? What does it do, and why? -->
It's just showing that ruff is supported in one more package manager.
## Test Plan
You can run `pkgx ruff` if you have pkgx installed or run `sh <(curl
https://pkgx.sh) +github.com/charliermarsh/ruff sh
`
In the source of working on #8859, I made a number of smallish refactors
to how code snippet formatting works. Most or all of these were
motivated by writing in support for reStructuredText blocks. They have
some fundamentally different requirements than doctests, and there are a
lot more ways for reStructuredText blocks to become invalid.
(Commit-by-commit review is recommended as the commit messages provide
further context on each change. I split this off from ongoing work to
make review more manageable.)
## Summary
- Adds `add_argument` similar to existing `remove_argument` utility to
safely add arguments to functions.
- Adds autofix for `PLW1514` as per specs requested in
https://github.com/astral-sh/ruff/issues/8883 as a test
## Test Plan
Checks on existing fixtures as well as additional test and fixture for
Python 3.9 and lower fix
## Issue Link
Closes: https://github.com/astral-sh/ruff/issues/8883
## Summary
Adds detection for branches without a `return` or `raise`, so that we
can properly `Optional` the return types. I'd like to remove this and
replace it with our code graph analysis from the `unreachable.rs` rule,
but it at least fixes the worst offenders.
Closes#8942.
## Summary
Triggers `no-return-argument-annotation-in-stub` (`PYI050`) for vararg
and kwarg `NoReturn` type annotations.
Related to #8771.
## Test Plan
`cargo test`
## Summary
When a function uses `@functools.singledispatch`, we need to treat the
first argument of any implementations as runtime-required.
Closes https://github.com/astral-sh/ruff/issues/6849.
## Summary
This PR fixes the bug where the autofix for `TRIO115` was taking the
entire arguments range for the fix which included the parenthesis as
well. This means that the fix would remove the arguments and the
parenthesis. The fix is to use the correct range.
fixes: #8713
## Test Plan
Update existing snapshots :)
## Summary
Part 2 of implementing the reverted autofix for `PYI030`
Also handles `typing.Union` and `typing_extensions.Literal` etc, uses
the first subscript name it finds for each offensive line.
## Test Plan
<!-- How was it tested? -->
`cargo test` and manually
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
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## Summary
Our `SoftKeywordTokenizer` only respected soft keywords in compound
statement positions -- for example, at the start of a logical line:
```python
type X = int
```
However, type aliases can also appear in simple statement positions,
like:
```python
class Class: type X = int
```
(Note that `match` and `case` are _not_ valid keywords in such
positions.)
This PR upgrades the tokenizer to track both kinds of valid positions.
Closes https://github.com/astral-sh/ruff/issues/8900.
Closes https://github.com/astral-sh/ruff/issues/8899.
## Test Plan
`cargo test`
## Summary
These rewrites are only (potentially) unsafe on Python versions that
predate their introduction into the standard library and grammar, so it
seems correct to mark them as safe on those later versions.
## Summary
Allows assignments of the form, e.g., `Attachment =
apps.get_model("zerver", "Attachment")`, for better compatibility with
Django.
Closes https://github.com/astral-sh/ruff/issues/7675.
## Test Plan
`cargo test`
## Summary
Given `with (a := b): pass`, we truncate the `WithItem` range by one on
both sides such that the parentheses are part of the statement, rather
than the item. However, for `with (a := b) as x: pass`, we want to avoid
this trick.
Closes https://github.com/astral-sh/ruff/issues/8913.
## Summary
This PR updates the `E402` rule to work at cell level for Jupyter
notebooks. This is enabled only in preview to gather feedback.
The implementation basically resets the import boundary flag on the
semantic model when we encounter the first statement in a cell.
Another potential solution is to introduce `E403` rule that is
specifically for notebooks that works at cell level while `E402` will be
disabled for notebooks.
## Test Plan
Add a notebook with imports in multiple cells and verify that the rule
works as expected.
resolves: #8669
## Summary
Given `Union[Dict, None]` (in our internal representation), we were
filtering out `Dict` since we treat it as un-representable (i.e., we
can't convert it to an expression), returning just `None` as the type
annotation. We should require that all members of the union are
representable.
Closes https://github.com/astral-sh/ruff/issues/8879.
## Summary
This PR fixes the bug in the lexer where the `Mode::Ipython` wasn't
being considered when initializing the soft keyword transformer which
wraps the lexer. This means that if the source code starts with either
`match` or `type` keyword, then the keywords were being considered as
name tokens instead. For example,
```python
match foo:
case bar:
pass
```
This would transform the `match` keyword into an identifier if the mode
is `Ipython`.
The fix is to reverse the condition in the soft keyword initializer so
that any new modes are by default considered as the lexer being at start
of line.
## Test Plan
Add a new test case for `Mode::Ipython` and verify the snapshot.
fixes: #8870
This PR removes several uses of `unsafe`. I generally limited myself to
low hanging fruit that I could see. There are still a few remaining uses
of `unsafe` that looked a bit more difficult to remove (if possible at
all). But this gets rid of a good chunk of them.
I put each `unsafe` removal into its own commit with a justification for
why I did it. So I would encourage reviewing this PR commit-by-commit.
That way, we can legislate them independently. It's no problem to drop a
commit if we feel the `unsafe` should stay in that case.
## Summary
Closes#1567.
Add both `length-sort` and `length-sort-straight` settings for isort.
Here are a few notable points:
- The length is determined using the
[`unicode_width`](https://crates.io/crates/unicode-width) crate, i.e. we
are talking about displayed length (this is explicitly mentioned in the
description of the setting)
- The dots are taken into account in the length to be compatible with
the original isort
- I had to reorder a few fields of the module key struct for it all to
make sense (notably the `force_to_top` field is now the first one)
## Test Plan
I added tests for the following cases:
- Basic tests for length-sort with ASCII characters only
- Tests with non-ASCII characters
- Tests with relative imports
- Tests for length-sort-straight
This turns `string` into a parent module with a `docstring` sub-module.
I arranged things this way because there are parts of the `string`
module that the `docstring` module wants to know about (such as a
`NormalizedString`). The alternative I think would be to make
`docstring` a sibling module and expose more of `string`'s internals.
I think I overall like this change because it gives docstring handling a
bit more room to breath. It has grown quite a bit with the addition of
code snippet formatting.
[This was suggested by
@charliermarsh.](https://github.com/astral-sh/ruff/pull/8811#discussion_r1401169531)
## Summary
This PR adds opt-in support for formatting doctests in docstrings. This
reflects initial support and it is intended to add support for Markdown
and reStructuredText Python code blocks in the future. But I believe
this PR lays the groundwork, and future additions for Markdown and reST
should be less costly to add.
It's strongly recommended to review this PR commit-by-commit. The last
few commits in particular implement the bulk of the work here and
represent the denser portions.
Some things worth mentioning:
* The formatter is itself not perfect, and it is possible for it to
produce invalid Python code. Because of this, reformatted code snippets
are checked for Python validity. If they aren't valid, then we
(unfortunately silently) bail on formatting that code snippet.
* There are a couple places where it would be nice to at least warn the
user that doctest formatting failed, but it wasn't clear to me what the
best way to do that is.
* I haven't yet run this in anger on a real world code base. I think
that should happen before merging.
Closes#7146
## Test Plan
* [x] Pass the local test suite.
* [x] Scrutinize ecosystem changes.
* [x] Run this formatter on extant code and scrutinize the results.
(e.g., CPython, numpy.)
A follow-up to auto-generate the `FormatNodeRule` implementation for the
string part nodes. This is just a dummy implementation that is
unreachable because it's handled by the parent nodes.
## Summary
This PR is a follow-up to the AST refactor which does the following:
- Remove `Deref` implementation on `StringLiteralValue` and use explicit
`as_str` calls instead. The `Deref` implementation would implicitly
perform allocations in case of implicitly concatenated strings. This is
to make sure the allocation is explicit.
- Now, certain methods can be implemented to do zero allocations which
have been implemented in this PR. They are:
- `is_empty`
- `len`
- `chars`
- Custom `PartialEq` implementation to compare each character
## Test Plan
Run the linter test suite and make sure all tests pass.
## Summary
This PR updates the string nodes (`ExprStringLiteral`,
`ExprBytesLiteral`, and `ExprFString`) to account for implicit string
concatenation.
### Motivation
In Python, implicit string concatenation are joined while parsing
because the interpreter doesn't require the information for each part.
While that's feasible for an interpreter, it falls short for a static
analysis tool where having such information is more useful. Currently,
various parts of the code uses the lexer to get the individual string
parts.
One of the main challenge this solves is that of string formatting.
Currently, the formatter relies on the lexer to get the individual
string parts, and formats them including the comments accordingly. But,
with PEP 701, f-string can also contain comments. Without this change,
it becomes very difficult to add support for f-string formatting.
### Implementation
The initial proposal was made in this discussion:
https://github.com/astral-sh/ruff/discussions/6183#discussioncomment-6591993.
There were various AST designs which were explored for this task which
are available in the linked internal document[^1].
The selected variant was the one where the nodes were kept as it is
except that the `implicit_concatenated` field was removed and instead a
new struct was added to the `Expr*` struct. This would be a private
struct would contain the actual implementation of how the AST is
designed for both single and implicitly concatenated strings.
This implementation is achieved through an enum with two variants:
`Single` and `Concatenated` to avoid allocating a vector even for single
strings. There are various public methods available on the value struct
to query certain information regarding the node.
The nodes are structured in the following way:
```
ExprStringLiteral - "foo" "bar"
|- StringLiteral - "foo"
|- StringLiteral - "bar"
ExprBytesLiteral - b"foo" b"bar"
|- BytesLiteral - b"foo"
|- BytesLiteral - b"bar"
ExprFString - "foo" f"bar {x}"
|- FStringPart::Literal - "foo"
|- FStringPart::FString - f"bar {x}"
|- StringLiteral - "bar "
|- FormattedValue - "x"
```
[^1]: Internal document:
https://www.notion.so/astral-sh/Implicit-String-Concatenation-e036345dc48943f89e416c087bf6f6d9?pvs=4
#### Visitor
The way the nodes are structured is that the entire string, including
all the parts that are implicitly concatenation, is a single node
containing individual nodes for the parts. The previous section has a
representation of that tree for all the string nodes. This means that
new visitor methods are added to visit the individual parts of string,
bytes, and f-strings for `Visitor`, `PreorderVisitor`, and
`Transformer`.
## Test Plan
- `cargo insta test --workspace --all-features --unreferenced reject`
- Verify that the ecosystem results are unchanged
## Summary
This PR updates the `E703` rule to avoid flagging any semicolons if
they're present after the last expression in a notebook cell. These are
intended to hide the cell output.
Part of #8669
## Test Plan
Add test notebook and update the snapshots.
## Summary
This PR updates `B015` and `B018` to ignore last top-level expressions
in each cell of a Jupyter Notebook.
Part of #8669
## Test Plan
Add test cases for both rules and update the snapshots.
## Summary
This refactors the `ruff_cli` integration tests to create a new
`RuffCheck` struct -- this holds options to configure the "common case"
flags that we want to pass to Ruff (e.g. `--no-cache`, `--isolated`,
etc). This helps reduce the boilerplate and (IMO) makes it more obvious
what the core logic of each test is by keeping only the "interesting"
parameters.
## Test Plan
`cargo test`
closes#8732
I noticed that the reference to the setting in the rule docs doesn't
work, but there seem to be something wrong with pylint settings in
general in the docs - the "For related settings, see ...." is also
missing there.
# Summary
This setting behaves similarly to the ``from_first`` setting in isort
upstream, and sorts "from X import Y" type imports before straight
imports.
Like the other PR I added, happy to refactor if this is better in
another form.
Fixes#8662
# Test plan
I've added a unit test, and ran this on a large codebase that relies on
this setting in isort to verify it doesn't have unexpected side effects.
Closes https://github.com/astral-sh/ruff/issues/7347Closes#3970 via use of `include`
We could update examples in our documentation, but I worry since we do
not have versioned documentation users on older versions would be
confused. Instead, I'll open an issue to track updating use of `ruff
check .` in the documentation sometime in the future.
Semantically it makes sense to put certain contextmanagers into separate
with statements. Currently asyncio.timeout and its relatives in anyio
and trio are exempt from SIM117.
Closes https://github.com/astral-sh/ruff/issues/8606
## Summary
Exempt asyncio.timeout and related functions from SIM117 (Collapse with
statements where possible).
See https://github.com/astral-sh/ruff/issues/8606 for more.
## Test Plan
Extended the insta tests.
## Summary
Fixes#8750. `import __main__` is now considered a first-party import,
and is grouped accordingly by the linter and formatter.
## Test Plan
Added a test based off code supplied in the linked issue.
## Summary
In 2.0, Pydantic has moved the `BaseSettings` class to a separate
package called `pydantic-settings`
(https://docs.pydantic.dev/2.4/migration/#basesettings-has-moved-to-pydantic-settings),
which results in a false positive on `RUF012` (`mutable-class-default`).
A simple fix for that would be adding `pydantic_settings.BaseSettings`
base to the `has_default_copy_semantics` helper, which I've done in this
PR.
Related issue: #5308
## Test Plan
`cargo test`
Bumps [js-sys](https://github.com/rustwasm/wasm-bindgen) from 0.3.64 to
0.3.65.
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Bumps [uuid](https://github.com/uuid-rs/uuid) from 1.5.0 to 1.6.0.
<details>
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<p><em>Sourced from <a
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<h2>1.6.0</h2>
<h2>What's Changed</h2>
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## Summary
It turns out that some type checkers rely on the presence of ellipses in
`Protocol` interfaces and abstract methods, in order to differentiate
between default implementations and stubs. This PR modifies the preview
behavior of `PIE790` to avoid flagging "unnecessary" ellipses in such
cases.
Closes https://github.com/astral-sh/ruff/issues/8756.
## Test Plan
`cargo test`
If you define a subclass of `pydantic.BaseModel`, and then a subclass of
_that_ class in the same file, we'll now correctly treat it as
runtime-evaluated.
Closes https://github.com/astral-sh/ruff/issues/7893.
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## Summary
Adds the Pylint rule E1132 to check for repeated keyword arguments in a
function call.
## Test Plan
Tested via the included unit tests and manual spot checking.
## Summary
Ensures that we can catch cases like:
```python
ages = {"Tom": 23, "Maria": 23, "Dog": 11}
age = ages.get("Cat", None)
```
Previously, the rule was somewhat useless, as it only checked for
literal accesses.
Closes https://github.com/astral-sh/ruff/issues/8760.
This dockerfile creates a minimal docker container that runs ruff
```console
$ docker run -v .:/io --rm ruff check --select G004 .
scripts/check_ecosystem.py:51:26: G004 Logging statement uses f-string
scripts/check_ecosystem.py:55:22: G004 Logging statement uses f-string
scripts/check_ecosystem.py:84:13: G004 Logging statement uses f-string
scripts/check_ecosystem.py:177:18: G004 Logging statement uses f-string
scripts/check_ecosystem.py:200:18: G004 Logging statement uses f-string
scripts/check_ecosystem.py:354:18: G004 Logging statement uses f-string
scripts/check_ecosystem.py:477:18: G004 Logging statement uses f-string
Found 7 errors.
```
```console
$ docker image ls ruff
REPOSITORY TAG IMAGE ID CREATED SIZE
ruff latest 505876b0f817 2 minutes ago 16.2MB
```
Test repo: https://github.com/konstin/release-testing2
Successful build:
https://github.com/konstin/release-testing2/actions/runs/6862107104/job/18659155108
The package:
https://github.com/konstin/release-testing2/pkgs/container/release-testing2
After merging this, i have to manually push the first image and connect
it the repo in the github UI or the action will fail due to lack of
permissions
Open questions:
* Test arm version: Anyone working on an aarch64 linux machine? I don't
see this failing or a high-priority deployment (the vast majority of
linux users is on x86), but it would be nice to have it tested one.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Fix an instability where await was followed by a breaking fluent style
expression:
```python
test_data = await (
Stream.from_async(async_data)
.flat_map_async()
.map()
.filter_async(is_valid_data)
.to_list()
)
```
Note that this technically a minor style change (see ecosystem check)
Closes https://github.com/astral-sh/ruff/issues/8695
We track the smallest offset seen for overindented lines then only
reduce the indentation of the lines that far to preserve indentation in
other lines. This rule's behavior now matches our formatter, which is
nice.
We may want to gate this with preview.
## Summary
When running ruff in verbose mode with `-v`, the first debug logs show
where the config settings are taken from. For example:
```
❯ ruff check ./some_file.py -v
[2023-11-17][00:16:25][ruff_cli::resolve][DEBUG] Using pyproject.toml (parent) at /Users/vince/demo/ruff.toml
```
This threw me off for a second because I knew I had no python project
there, and therefore no `pyproject.toml` file. Then I realised it was
actually reading a `ruff.toml` file (obvious when you read the whole
print I suppose) and that the pyproject.toml is a hardcoded string in
the debug log.
I think it would be nice to tweak the wording slightly so it is clear
that the settings don't neccessarily have to come from a
`pyproject.toml` file.
We ended up with a syntax error here via `from trio import
lowlevel.checkpoint`. The new solution avoids that error, but does miss
cases like:
```py
from trio.lowlevel import Timer
```
Where it could insert `from trio.lowlevel import Timer, checkpoint`.
Instead, it'll add `from trio import lowlevel`.
See:
https://github.com/astral-sh/ruff/issues/8402#issuecomment-1810838129
Update to [Rust
1.74](https://blog.rust-lang.org/2023/11/16/Rust-1.74.0.html) and use
the new clippy lints table.
The update itself introduced a new clippy lint about superfluous hashes
in raw strings, which got removed.
I moved our lint config from `rustflags` to the newly stabilized
[workspace.lints](https://doc.rust-lang.org/stable/cargo/reference/workspaces.html#the-lints-table).
One consequence is that we have to `unsafe_code = "warn"` instead of
"forbid" because the latter now actually bans unsafe code:
```
error[E0453]: allow(unsafe_code) incompatible with previous forbid
--> crates/ruff_source_file/src/newlines.rs:62:17
|
62 | #[allow(unsafe_code)]
| ^^^^^^^^^^^ overruled by previous forbid
|
= note: `forbid` lint level was set on command line
```
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
I think it's reasonable to avoid raising `INP001` for scripts, and
shebangs are one sufficient way to detect scripts.
Closes https://github.com/astral-sh/ruff/issues/8690.
I checked for ipython-specific builtins on python 3.11 using
```python
import json
from subprocess import check_output
builtins_python = json.loads(check_output(["python3", "-c" "import json; print(json.dumps(dir(__builtins__)))"]))
builtins_ipython = json.loads(check_output(["ipython3", "-c" "import json; print(json.dumps(dir(__builtins__)))"]))
print(sorted(set(builtins_ipython) - set(builtins_python)))
```
and updated the relevant constant and match. The list changes from
`display`
to
`__IPYTHON__`, `display`, `get_ipython`.
Followup to #8707
## Summary
This exists to power a test, but it ends up affecting the behavior of
all files in the directory. Namely, it means that these files _aren't_
excluded when you format or lint them directly, since in that case, Ruff
will fall back to looking at the `pyproject.toml` in
`crates/ruff_linter/resources/test/fixtures`, which _doesn't_ exclude
these files, unlike our top-level `pyproject.toml`.
## Summary
We already support inserting imports for `I002` -- this PR just adds the
same fix for `FA102`, which is explicitly about `from __future__ import
annotations`.
Closes https://github.com/astral-sh/ruff/issues/8682.
## Summary
It seems like the range of an `ExprStringLiteral` can be somewhat
unreliable when the string is part of an implicit concatenation with an
f-string. Using the tokens themselves is more reliable.
Closes#8680.
Closes https://github.com/astral-sh/ruff/issues/7784.
## Summary
`display` is a special-cased builtin in IPython. This PR adds it to the
builtin namespace when analyzing IPython notebooks.
Closes https://github.com/astral-sh/ruff/issues/8702.
## Summary
This adds an autofix for PIE800 (unnecessary spread) -- whenever we see
a `**{...}` inside another dictionary literal, just delete the `**{` and
`}` to inline the key-value pairs. So `{"a": "b", **{"c": "d"}}` becomes
just `{"a": "b", "c": "d"}`.
I have enabled this just for preview mode.
## Test Plan
Updated the preview snapshot test.
## Summary
Implements
[FURB136](https://github.com/dosisod/refurb/blob/master/docs/checks.md#furb136-use-min-max)
that checks for `if` expressions that can be replaced with `min()` or
`max()` calls. See issue #1348 for more information.
This implementation diverges from Refurb's original implementation by
retaining the order of equal values. For example, Refurb suggest that
the following expressions:
```python
highest_score1 = score1 if score1 > score2 else score2
highest_score2 = score1 if score1 >= score2 else score2
```
should be to rewritten as:
```python
highest_score1 = max(score1, score2)
highest_score2 = max(score1, score2)
```
whereas this implementation provides more correct alternatives:
```python
highest_score1 = max(score2, score1)
highest_score2 = max(score1, score2)
```
## Test Plan
Unit test checks all eight possibilities.
Testing the compatibility with the future stable black style, i realized
the `ruff_python_formatter` dev main was lacking the
`--skip-magic-trailing-comma` option. This does not affect `ruff
format`.
Usage:
```shell
cargo run --bin ruff_python_formatter -p ruff_python_formatter -- --skip-magic-trailing-comma --emit stdout scratch.py
```
## Summary
This adds a ``no-sections`` option for isort in the linter, similar to
the ``no_sections`` option that exists in upstream isort
(https://pycqa.github.io/isort/docs/configuration/options.html#no-sections)
This option puts all imports except for ``__future__`` into the same
section, and is mostly used by monorepos.
I've taken a bit of a leap in assuming that ruff wants to support the
exact same option; more than happy to refactor if you'd prefer a
different way of setting this up.
Fixes#8653
## Test Plan
I've added a test and have run it on a large Python codebase that uses
isort with --no-sections. The option is disabled by default.
While fixing #8661 I noticed that the code structure for sorting imports
could be simplified.
## Summary
- Move the logic for `force_sort_within_sections` from `isort/mod.rs` to
`isort/ordering.rs` => now there is just one line in `isort/mod.rs`:
`let imports = order_imports(import_block, settings);` which yields the
sorted imports
- Change the function signature of `order_imports` to directly return a
`Vec<EitherImport<'a>>` => no need for `OrderedImportBlock`
I think this is a bit of an improvement because the code is simpler and
there should be a bit of a speedup when setting
`force-sort-within-sections` to true. Indeed, when it's set to true
we're now directly ordering all the imports, whereas before we would
first order the straight imports, then the from imports, combine them
and finally sort the combination a second time (this is probably not
noticeable in practice though).
## Test Plan
No tests added, this is a simple refactor.
For the `PLW0129` rule, the f-string case shouldn't match against bytes
literal as f-strings cannot contain them. F-strings are made up of
either string literals or formatted expressions.
## Summary
This PR adds (unsafe) fixes to the flake8-annotations rules that enforce
missing return types, offering to automatically insert type annotations
for functions with literal return values. The logic is smart enough to
generate simplified unions (e.g., `float` instead of `int | float`) and
deal with implicit returns (`return` without a value).
Closes https://github.com/astral-sh/ruff/issues/1640 (though we could
open a separate issue for referring parameter types).
Closes https://github.com/astral-sh/ruff/issues/8213.
## Test Plan
`cargo test`
Fixes#8661
## Summary
Imports like `from x import y` don't have an "asname" for the module, so
they were placed before imports like `import x as w` since `None` <
`Some(s)` for any string s.
The fix is to first sort by `first_alias`, since it's `None` for `import
x as w`, and then by `asname`.
## Test Plan
I included the example from the issue to avoid future regressions.
When using the autofixer for `Q000` it does not remove the backslashes
from quotes that no longer need escaping.
This new rule checks for such backslashes (regardless whether they come
from the autofixer or not) and can remove them.
fixes#8617
## Summary
This PR extends `unnecessary-pass` (`PIE790`) to flag unnecessary
ellipsis expressions in addition to `pass` statements. A `pass` is
equivalent to a standalone `...`, so it feels correct to me that a
single rule should cover both cases.
When we look to v0.2.0, we should also consider deprecating `PYI013`,
which flags ellipses only for classes.
Closes https://github.com/astral-sh/ruff/issues/8602.
## Summary
PIE807 will rewrite `lambda: []` to `list` -- AFAICT though, the same
rationale also applies to dicts, so I've modified the code to also
rewrite `lambda: {}` to `dict`.
Two things I'm not sure about:
* Should this go to a new rule? This no longer actually matches the
behavior of flake8-pie, and while I think thematically it makes sense to
be part of the same rule, we could make it a standalone rule (but if so,
where should I put it and what error code should I use)?
* If we want a single rule, are there backwards compatibility concerns
with the rule name change (from `reimplemented_list_builtin` to
`reimplemented_container_builtin`?
## Test Plan
Added snapshot tests of the functionality.
## Summary
This PR implements validation in the formatter tests to ensure that we
don't modify the AST during formatting. Black has similar logic.
In implementing this, I learned that Black actually _does_ modify the
AST, and their test infrastructure normalizes the AST to wipe away those
differences. Specifically, Black changes the indentation of docstrings,
which _does_ modify the AST; and it also inserts parentheses in `del`
statements, which changes the AST too.
Ruff also does both these things, so we _also_ implement the same
normalization using a new visitor that allows for modifying the AST.
Closes https://github.com/astral-sh/ruff/issues/8184.
## Test Plan
`cargo test`
## Summary
This PR makes `whitespace-before-punctuation` (`E203`) compatible with
the formatter by relaxing the rule a bit, as compared to the pycodestyle
implementation. It's also more consistent with PEP 8, which says:
> However, in a slice the colon acts like a binary operator, and should
have equal amounts on either side (treating it as the operator with the
lowest priority).
Closes https://github.com/astral-sh/ruff/issues/7259.
Closes https://github.com/astral-sh/ruff/issues/8642.
## Test Plan
`cargo test`
It seems as though using `include!(...)` to avoid the source code copy
breaks rust-analzer. Namely, it treats the included file as unlinked,
and so any part of analysis (e.g., goto-definition) that needs that file
to reason about the code ends up failing.
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
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## Summary
This adds redirects from, e.g., `https://docs.astral.sh/ruff/rules/F401`
to `https://docs.astral.sh/ruff/rules/unused-import`, which are
generated automatically when creating the documentation. Though we want
to move towards human-readable names eventually, I think this is a nice
and user-friendly change (and doesn't require any fancy infrastructure,
since the redirects are handled via a plugin and added client-side).
Closes#4710.
Previously, this rule used the range of the `self` annotation, but it's
a lot more natural to use the range of the function name (since it also
means the `# noqa` is associated with the method rather than its first
argument).
Closes https://github.com/astral-sh/ruff/issues/8635.
## Summary
- Close#7487
In the spirit of `flake8-boolean-trap`, any positional argument that can
accept a boolean should raise `FBT001`.
Raise `FBT001` for all annotations that accept booleans (e.g.
`Optional[bool]`, `Union[int, bool]`).
## Test Plan
Add a fixture, with an annotation using `|`, `Optional`, and `Union`,
and containing a boolean.
## Summary
Removes unnecessary commentary from the PD901 message. This does make it
different from pandas-vet, but it improves consistency with the rest of
messages.
Current Message:
> `df` is a bad variable name. Be kinder to your future self.
New Message
> `df` is a bad variable name.
## Test Plan
The relevant snapshot has been updated with the new message.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
I got an error from RUF001 and wanted to override it. How to do that was
not quite obvious. In the process I have tried to improve the
documentation for the rule and it's siblings.
## Summary
The ruff configuration section is called "format", rather than
"preview". Using the configuration as it was written in the docs gives
an error:
```
$ ruff format --check .
ruff failed
Cause: TOML parse error at line 143, column 1
|
143 | [tool.ruff.preview]
| ^^^^^^^^^^^^^^^^^^^
invalid type: map, expected a boolean
```
## Test Plan
Tested running `ruff format` with the following in my `pyproject.toml`:
```toml
[tool.ruff.format]
preview = true
```
and it worked properly (using preview rules for formatting).
## Summary
Adds an extra check to F632 to check for any `is` comparisons to a
mutable initialisers.
Implements #8589 .
Example:
```Python
named_var = {}
if named_var is {}: # F632 (fix)
pass
```
The if condition will always evaluate to False because it checks on
identity and it's impossible to take the same identity as a hard coded
list/set/dict initializer.
## Test Plan
Multiple test cases were added to ensure the rule works + doesn't flag
false positives + the fix works correctly.
## Summary
This fixes#2606 by moving where we apply the convention ignores --
instead of applying that at the very end, e track, we now track which
rules have been specifically enabled (via `Specificity::Rule`). If they
have, then we do *not* apply the docstring overrides at the end.
## Test Plan
Added unit tests to `ruff_workspace` and an integration test to
`ruff_cli`
## Summary
This PR updates the formatter to preserve trailing semicolon for Jupyter
Notebooks.
The motivation behind the change is that semicolons in notebooks are
typically used to hide the output, for example when plotting. This is
highlighted in the linked issue.
The conditions required as to when the trailing semicolon should be
preserved are:
1. It should be a top-level statement which is last in the module.
2. For statement, it can be either assignment, annotated assignment, or
augmented assignment. Here, the target should only be a single
identifier i.e., multiple assignments or tuple unpacking isn't
considered.
3. For expression, it can be any.
## Test Plan
Add a new integration test in `ruff_cli`. The test notebook basically
acts as a document as to which trailing semicolons are to be preserved.
fixes: #8254
Previously, this lint had its alias detection logic a little
backwards. That is, for Python 3.11+, it would *only* detect
asyncio.TimeoutError as an alias, but it should have also detected
socket.timeout as an alias. And in Python <3.11, it would falsely
detect asyncio.TimeoutError as an alias where it should have only
detected socket.timeout as an alias.
We fix it so that both asyncio.TimeoutError and socket.timeout are
detected as aliases in Python 3.11+, and only socket.timeout is
detected as an alias in Python 3.10.
Fixes#8565
## Test Plan
I tested this by updating the existing snapshot test which had
erroneously
asserted that socket.timeout should not be replaced with TimeoutError in
Python
3.11+. I also added a new regression test that targets Python 3.10 and
ensures
that the suggestion to replace asyncio.TimeoutError with TimeoutError
does not
occur.
## Summary
This fixes the bug where the `flake8-commas` rules weren't taking the
new f-string tokens into account.
## Test Plan
Add new test cases around f-strings for all of `flake8-commas`'s rules.
fixes: #8556
## Summary
When you run Ruff via stdin, and pass `format` or `check --fix`, we
typically write the changed or unchanged contents to stdout. It turns
out we forgot to do this when the file is _excluded_, so if you run
`ruff format /path/to/excluded/file.py`, we don't write _anything_ to
`stdout`. This led to a bug in the LSP whereby we deleted file contents
for third-party files.
The right thing to do here is write back the unchanged contents, as it
should always be safe to write the output of stdout back to a file.
## Summary
An assignment can be _both_ (e.g.) a loop variable _and_ assigned via
unpacking. In other words, unpacking is a quality of an assignment, not
a _kind_.
## Summary
This brings ruff's behavior in line with what `pep8-naming` already does
and thus closes#8397.
I had initially implemented this to look at the last segment of a dotted
path only when the entry in the `*-decorators` setting started with a
`.`, but in the end I thought it's better to remain consistent w/
`pep8-naming` and doing a match against the last segment of the
decorator name in any case.
If you prefer to diverge from this in favor of less ambiguity in the
configuration let me know and I'll change it so you would need to put
e.g. `.expression` in the `classmethod-decorators` list.
## Test Plan
Tested against the file in the issue linked below, plus the new testcase
added in this PR.
~Improves detection of types imported from `typing_extensions`. Removes
the hard-coded list of supported types in `typing_extensions`; instead
assuming all types could be imported from `typing`, `_typeshed`, or
`typing_extensions`.~
~The typing extensions package appears to re-export types even if they
do not need modification.~
Adds detection of `if typing_extensions.TYPE_CHECKING` blocks. Avoids
inserting a new `if TYPE_CHECKING` block and `from typing import
TYPE_CHECKING` if `typing_extensions.TYPE_CHECKING` is used (closes
https://github.com/astral-sh/ruff/issues/8427)
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
This PR fixes the bug where the generated fix for `EM*` rules would
replace a
triple-quoted (f-)string with a single-quoted (f-)string. This changes
the
semantic of the string in case it contains a single-quoted string
literal. This
is especially evident with f-strings where the expression could contain
another
string within it. For example,
```python
f"""normal {"another"} normal"""
```
## Test Plan
Add test case for triple-quoted string and update the snapshots.
fixes: #6988fixes: #7736
This ensures the python label is used for all python code blocks for
consistency.
## Test Plan
Visual inspection of all changes via git client ensuring no other
changes were made in error.
I'd rather not be the only one who can easily generate our changelog
entries so I invested some time to get Rooster a bit further along and
add instructions.
## Summary
This PR addresses the incompatibility with `jupyterlab-lsp` +
`python-lsp-ruff` arising from the inference of source type from file
extension, raised in #6847.
In particular it follows the suggestion in
https://github.com/astral-sh/ruff/issues/6847#issuecomment-1765724679 to
specify a mapping from file extension to source type.
The source types are
- python
- pyi
- ipynb
Usage:
```sh
ruff check --no-cache --stdin-filename Untitled.ipynb --extension ipynb:python
```
Unlike the original suggestion, `:` instead of `=` is used to associate
file extensions to language since that is what is used with
`--per-file-ignores` which is an existing option that accepts a mapping.
## Test Plan
2 tests added to `integration_test.rs` to ensure the override works as
expected
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
I got some feedback on Mastodon that it wasn't clear how to use the
linter and formatter together in pre-commit (mostly in the pre-commit
repo's documentation, which is even less clear, but the two should be
consistent).
## Summary
Prior to this change `extend_unsafe_fixes` took precedence over
`extend_safe_fixes` selectors, so any conflicts were resolved in favour
of `extend_unsafe_fixes`. Thanks to that ruff were conservatively
assuming that if configs conlict the fix corresponding to selected rule
will be treated as unsafe.
After this change we take into account Specificity of the selectors. For
conflicts between selectors of the same Specificity we will treat the
corresponding fixes as unsafe. But if the conflicting selectors are of
different specificity the more specific one will win.
## Test Plan
Tests were added for the `FixSafetyTable` struct. The
`check_extend_unsafe_fixes_conflict_with_extend_safe_fixes_by_specificity`
integration test was added to test conflicting rules of different
specificity.
Fixes#8404
---------
Co-authored-by: Zanie <contact@zanie.dev>
These names are only ever displayed internally right now and we could be
clearer in our test snapshots.
The diff is kind of scary because all of the tests fixtures are updated.
## Summary
Being able to set `--no-cache` without touching the command line makes
comparing formatter speed with e.g. Hyperfine a lot easier; Black allows
one to set `BLACK_CACHE_DIR=/dev/null`, but setting
`RUFF_CACHE_DIR=/dev/null` has Ruff choke:
```
error: Failed to initialize cache at /dev/null: Not a directory (os error 20)
error: Failed to initialize cache at /dev/null: Not a directory (os error 20)
warning: Failed to open cache file '/dev/null/0.1.4/18160934645386409287': Not a directory (os error 20)
```
Alternately, we could make a `/dev/null` (or `nul` on Windows) cache
directory imply `--no-cache`?
## Test Plan
None yet.
## Summary
This commit adds some additional error checking to the parser such that
assignments that are invalid syntax are rejected. This covers the
obvious cases like `5 = 3` and some not so obvious cases like `x + y =
42`.
This does add an additional recursive call to the parser for the cases
handling assignments. I had initially been concerned about doing this,
but `set_context` is already doing recursion during assignments, so I
didn't feel as though this was changing any fundamental performance
characteristics of the parser. (Also, in practice, I would expect any
such recursion here to be quite shallow since the recursion is done on
the target of an assignment. Such things are rarely nested much in
practice.)
Fixes#6895
## Test Plan
I've added unit tests covering every case that is detected as invalid on
an `Expr`.
## Summary
Fixes bug in `TRIO115` where it would not `return` for values that were
not a `NumberLiteral` so
```python
x = "bla"
trio.sleep(x)
```
would set off a false positive
## Test Plan
Added test case to fixture
## Summary
Given `key in obj.keys()`, `obj` _could_ be a dictionary, or it could be
another type that defines
a `.keys()` method. In the latter case, removing the `.keys()` attribute
could lead to a runtime error.
Previously, we marked all `SIM118` fixes as unsafe for this reason;
however, in preview, we now mark them as safe if we can
infer that the expression is a dictionary.
## Test Plan
Added a preview fixture.
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please consider the following:
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## Summary
For example, https://github.com/astral-sh/ruff/pull/8512 doesn't need
ecosystem check
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
<!-- How was it tested? -->
## Summary
We have this pattern in a bunch of places, where we find the _only_
binding to a name (and return `None`) if it's bound multiple times. This
PR DRYs it up into a method on `SemanticModel`.
## Summary
If you want to create an edit with dynamic applicability, you have to
branch and repeat the edit entirely between the two branches. If you
further need the edit itself to be dynamic (e.g., perhaps you have a
single edit in one case, vs. multiple in another), you suddenly have
four branches. This PR just adds an alternate constructor that takes
applicability as an argument, as an escape hatch.
## Summary
Implement
[`no-is-type-none`](https://github.com/dosisod/refurb/blob/master/refurb/checks/builtin/no_is_type_none.py)
as `type-none-comparison` (`FURB169`).
Auto-fixes comparisons that use `type` to compare the type of an object
to `type(None)` to a `None` identity check. For example,
```python
type(foo) is type(None)
```
becomes
```python
foo is None
```
Related to #1348.
## Test Plan
`cargo test`
## Summary
Black and Ruff's preview styles now collapse statements like:
```python
from contextlib import nullcontext
ctx = nullcontext()
with ctx: ...
```
Historically, we made an exception here for classes
(https://github.com/astral-sh/ruff/pull/2837). This PR extends it to
other statement kinds for consistency with the formatter.
Closes https://github.com/astral-sh/ruff/issues/8496.
## Summary
Adds `TRIO105` from the [flake8-trio
plugin](https://github.com/Zac-HD/flake8-trio). The `MethodName` logic
mirrors that of `TRIO100` to stay consistent within the plugin.
It is at 95% parity with the exception of upstream also checking for a
slightly more complex scenario where a call to `start()` on a
`trio.Nursery` context should also be immediately awaited. Upstream
plugin appears to just check for anything named `nursery` judging from
[the relevant issue](https://github.com/Zac-HD/flake8-trio/issues/56).
Unsure if we want to do so something similar or, alternatively, if there
is some capability in ruff to check for calls made on this context some
other way
## Test Plan
Added a new fixture, based on [the one from upstream
plugin](https://github.com/Zac-HD/flake8-trio/blob/main/tests/eval_files/trio105.py)
## Issue link
Refers: https://github.com/astral-sh/ruff/issues/8451
## Summary
This PR fixes a bug in our formatter where a multiline lambda expression
statement was formatted over multiple lines without adding parentheses.
The PR "fixes" the problem by not splitting the lambda parameters if it
is not parenthesized
## Test Plan
Added test
## Summary
Adds `memoryview` to the list of typeclasses that `fn is_type()` uses
for type comparison checks so that it raises a violation if `is`, `is
not` or `isinstance()` are not used.
## Test Plan
Added examples to existing fixture
## Issue Link
Closes: https://github.com/astral-sh/ruff/issues/8483
This is the one refactor in the NumPy 2.0 upgrade rule that isn't
compatible with earlier versions of NumPy, so I'm marking it as unsafe
and adding a dedicated message.
## Summary
Currently, `UP032` applied to raw strings results in format strings with
the prefix 'fr'. This gets changed to 'rf' by Ruff format (or Black). In
order to avoid that, this PR uses the prefix 'rf' to begin with.
## Test Plan
Updated the expectation on an existing test.
- \[`ruff`\] Add `never-union` rule to detect redundant `typing.NoReturn` and `typing.Never` ([#9217](https://github.com/astral-sh/ruff/pull/9217))
### CLI
- Add paths to TOML parse errors ([#9358](https://github.com/astral-sh/ruff/pull/9358))
- Add row and column numbers to formatter parse errors ([#9321](https://github.com/astral-sh/ruff/pull/9321))
- Improve responsiveness when invoked via Python ([#9315](https://github.com/astral-sh/ruff/pull/9315))
- Short rule messages should not end with a period ([#9345](https://github.com/astral-sh/ruff/pull/9345))
### Configuration
- Respect runtime-required decorators on functions ([#9317](https://github.com/astral-sh/ruff/pull/9317))
### Bug fixes
- Avoid `asyncio-dangling-task` for nonlocal and global bindings ([#9263](https://github.com/astral-sh/ruff/pull/9263))
- Escape trailing placeholders in rule documentation ([#9301](https://github.com/astral-sh/ruff/pull/9301))
- Fix continuation detection following multi-line strings ([#9332](https://github.com/astral-sh/ruff/pull/9332))
- Fix scoping for generators in named expressions in classes ([#9248](https://github.com/astral-sh/ruff/pull/9248))
- Port from obsolete wsl crate to is-wsl ([#9356](https://github.com/astral-sh/ruff/pull/9356))
- Remove special pre-visit for module docstrings ([#9261](https://github.com/astral-sh/ruff/pull/9261))
- Respect `__str__` definitions from super classes ([#9338](https://github.com/astral-sh/ruff/pull/9338))
- Respect `unused-noqa` via `per-file-ignores` ([#9300](https://github.com/astral-sh/ruff/pull/9300))
- Respect attribute chains when resolving builtin call paths ([#9309](https://github.com/astral-sh/ruff/pull/9309))
- Treat all `typing_extensions` members as typing aliases ([#9335](https://github.com/astral-sh/ruff/pull/9335))
- Use `Display` for formatter parse errors ([#9316](https://github.com/astral-sh/ruff/pull/9316))
- Wrap subscripted dicts in parens for f-string conversion ([#9238](https://github.com/astral-sh/ruff/pull/9238))
- \[`flake8-annotations`\] Avoid adding return types to stub methods ([#9277](https://github.com/astral-sh/ruff/pull/9277))
- \[`flake8-annotations`\] Respect mixed `return` and `raise` cases in return-type analysis ([#9310](https://github.com/astral-sh/ruff/pull/9310))
- \[`flake8-bandit`\] Don't report violations when `SafeLoader` is imported from `yaml.loader` (`S506`) ([#9299](https://github.com/astral-sh/ruff/pull/9299))
- \[`pylint`\] Avoid panic when comment is preceded by Unicode ([#9331](https://github.com/astral-sh/ruff/pull/9331))
- \[`pylint`\] Change `PLR0917` error message to match other `PLR09XX` messages ([#9308](https://github.com/astral-sh/ruff/pull/9308))
- \[`refurb`\] Avoid false positives for `math-constant` (`FURB152`) ([#9290](https://github.com/astral-sh/ruff/pull/9290))
### Documentation
- Expand target name for better rule documentation ([#9302](https://github.com/astral-sh/ruff/pull/9302))
- Fix typos found by codespell ([#9346](https://github.com/astral-sh/ruff/pull/9346))
- \[`flake8-boolean-trap`\] Allow booleans in `@override` methods ([#8882](https://github.com/astral-sh/ruff/pull/8882))
- \[`flake8-bugbear`\] Avoid `B015`,`B018` for last expression in a cell ([#8815](https://github.com/astral-sh/ruff/pull/8815))
- \[`flake8-pie`\] Allow ellipses for enum values in stub files ([#8825](https://github.com/astral-sh/ruff/pull/8825))
- \[`flake8-pyi`\] Check PEP 695 type aliases for `snake-case-type-alias` and `t-suffixed-type-alias` ([#8966](https://github.com/astral-sh/ruff/pull/8966))
- \[`flake8-pyi`\] Check for kwarg and vararg `NoReturn` type annotations ([#8948](https://github.com/astral-sh/ruff/pull/8948))
- \[`flake8-simplify`\] Omit select context managers from `SIM117` ([#8801](https://github.com/astral-sh/ruff/pull/8801))
- \[`pep8-naming`\] Allow Django model loads in `non-lowercase-variable-in-function` (`N806`) ([#8917](https://github.com/astral-sh/ruff/pull/8917))
- \[`pycodestyle`\] Avoid `E703` for last expression in a cell ([#8821](https://github.com/astral-sh/ruff/pull/8821))
- \[`pycodestyle`\] Update `E402` to work at cell level for notebooks ([#8872](https://github.com/astral-sh/ruff/pull/8872))
- \[`pydocstyle`\] Avoid `D100` for Jupyter Notebooks ([#8816](https://github.com/astral-sh/ruff/pull/8816))
- \[`pylint`\] Implement fix for `unspecified-encoding` (`PLW1514`) ([#8928](https://github.com/astral-sh/ruff/pull/8928))
### Formatter
- Avoid unstable formatting in ellipsis-only body with trailing comment ([#8984](https://github.com/astral-sh/ruff/pull/8984))
- Inline trailing comments for type alias similar to assignments ([#8941](https://github.com/astral-sh/ruff/pull/8941))
- Insert trailing comma when function breaks with single argument ([#8921](https://github.com/astral-sh/ruff/pull/8921))
### CLI
- Update `ruff check` and `ruff format` to default to the current directory ([#8791](https://github.com/astral-sh/ruff/pull/8791))
- Stop at the first resolved parent configuration ([#8864](https://github.com/astral-sh/ruff/pull/8864))
### Configuration
- \[`pylint`\] Default `max-positional-args` to `max-args` ([#8998](https://github.com/astral-sh/ruff/pull/8998))
- \[`pylint`\] Add `allow-dunder-method-names` setting for `bad-dunder-method-name` (`PLW3201`) ([#8812](https://github.com/astral-sh/ruff/pull/8812))
- \[`isort`\] Add support for `from-first` setting ([#8663](https://github.com/astral-sh/ruff/pull/8663))
- \[`isort`\] Add support for `length-sort` settings ([#8841](https://github.com/astral-sh/ruff/pull/8841))
### Bug fixes
- Add support for `@functools.singledispatch` ([#8934](https://github.com/astral-sh/ruff/pull/8934))
- Avoid off-by-one error in stripping noqa following multi-byte char ([#8979](https://github.com/astral-sh/ruff/pull/8979))
- Avoid off-by-one error in with-item named expressions ([#8915](https://github.com/astral-sh/ruff/pull/8915))
- Avoid syntax error via invalid ur string prefix ([#8971](https://github.com/astral-sh/ruff/pull/8971))
- Avoid underflow in `get_model` matching ([#8965](https://github.com/astral-sh/ruff/pull/8965))
- Avoid unnecessary index diagnostics when value is modified ([#8970](https://github.com/astral-sh/ruff/pull/8970))
- Convert over-indentation rule to use number of characters ([#8983](https://github.com/astral-sh/ruff/pull/8983))
- Detect implicit returns in auto-return-types ([#8952](https://github.com/astral-sh/ruff/pull/8952))
- Fix start >= end error in over-indentation ([#8982](https://github.com/astral-sh/ruff/pull/8982))
- Ignore `@overload` and `@override` methods for too-many-arguments checks ([#8954](https://github.com/astral-sh/ruff/pull/8954))
- Lexer start of line is false only for `Mode::Expression` ([#8880](https://github.com/astral-sh/ruff/pull/8880))
- Mark `pydantic_settings.BaseSettings` as having default copy semantics ([#8793](https://github.com/astral-sh/ruff/pull/8793))
- Respect dictionary unpacking in `NamedTuple` assignments ([#8810](https://github.com/astral-sh/ruff/pull/8810))
- Respect local subclasses in `flake8-type-checking` ([#8768](https://github.com/astral-sh/ruff/pull/8768))
- Support type alias statements in simple statement positions ([#8916](https://github.com/astral-sh/ruff/pull/8916))
- \[`flake8-annotations`\] Avoid filtering out un-representable types in return annotation ([#8881](https://github.com/astral-sh/ruff/pull/8881))
- \[`flake8-pie`\] Retain extra ellipses in protocols and abstract methods ([#8769](https://github.com/astral-sh/ruff/pull/8769))
- \[`flake8-pyi`\] Respect local enum subclasses in `simple-defaults` (`PYI052`) ([#8767](https://github.com/astral-sh/ruff/pull/8767))
- \[`flake8-trio`\] Use correct range for `TRIO115` fix ([#8933](https://github.com/astral-sh/ruff/pull/8933))
- \[`flake8-trio`\] Use full arguments range for zero-sleep-call ([#8936](https://github.com/astral-sh/ruff/pull/8936))
- \[`isort`\] fix: mark `__main__` as first-party import ([#8805](https://github.com/astral-sh/ruff/pull/8805))
- \[`pep8-naming`\] Avoid `N806` errors for type alias statements ([#8785](https://github.com/astral-sh/ruff/pull/8785))
- \[`perflint`\] Avoid `PERF101` if there's an append in loop body ([#8809](https://github.com/astral-sh/ruff/pull/8809))
- \[`pycodestyle`\] Allow space-before-colon after end-of-slice ([#8838](https://github.com/astral-sh/ruff/pull/8838))
- \[`pydocstyle`\] Avoid non-character breaks in `over-indentation` (`D208`) ([#8866](https://github.com/astral-sh/ruff/pull/8866))
- \[`pydocstyle`\] Ignore underlines when determining docstring logical lines ([#8929](https://github.com/astral-sh/ruff/pull/8929))
- \[`pylint`\] Extend `self-assigning-variable` to multi-target assignments ([#8839](https://github.com/astral-sh/ruff/pull/8839))
- \[`tryceratops`\] Avoid repeated triggers in nested `tryceratops` diagnostics ([#8772](https://github.com/astral-sh/ruff/pull/8772))
### Documentation
- Add advice for fixing RUF008 when mutability is not desired ([#8853](https://github.com/astral-sh/ruff/pull/8853))
- Added the command to run ruff using pkgx to the installation.md ([#8955](https://github.com/astral-sh/ruff/pull/8955))
- Document fix safety for flake8-comprehensions and some pyupgrade rules ([#8918](https://github.com/astral-sh/ruff/pull/8918))
- Fix doc formatting for zero-sleep-call ([#8937](https://github.com/astral-sh/ruff/pull/8937))
- Remove duplicate imports from os-stat documentation ([#8930](https://github.com/astral-sh/ruff/pull/8930))
- Replace generated reference to MkDocs ([#8806](https://github.com/astral-sh/ruff/pull/8806))
- Update Arch Linux package URL in installation.md ([#8802](https://github.com/astral-sh/ruff/pull/8802))
- \[`flake8-pyi`\] Fix error in `t-suffixed-type-alias` (`PYI043`) example ([#8963](https://github.com/astral-sh/ruff/pull/8963))
- \[`flake8-pyi`\] Improve motivation for `custom-type-var-return-type` (`PYI019`) ([#8766](https://github.com/astral-sh/ruff/pull/8766))
## 0.1.6
### Preview features
- \[`flake8-boolean-trap`\] Extend `boolean-type-hint-positional-argument` (`FBT001`) to include booleans in unions ([#7501](https://github.com/astral-sh/ruff/pull/7501))
- \[`flake8-pie`\] Extend `reimplemented-list-builtin` (`PIE807`) to `dict` reimplementations ([#8608](https://github.com/astral-sh/ruff/pull/8608))
- \[`flake8-pie`\] Extend `unnecessary-pass` (`PIE790`) to include ellipses (`...`) ([#8641](https://github.com/astral-sh/ruff/pull/8641))
- \[`flake8-pie`\] Implement fix for `unnecessary-spread` (`PIE800`) ([#8668](https://github.com/astral-sh/ruff/pull/8668))
- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-keyword` (`E271`) and `multiple-spaces-before-keyword` (`E272`) ([#8622](https://github.com/astral-sh/ruff/pull/8622))
- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-operator` (`E222`) and `multiple-spaces-before-operator` (`E221`) ([#8623](https://github.com/astral-sh/ruff/pull/8623))
- \[`pyflakes`\] Extend `is-literal` (`F632`) to include comparisons against mutable initializers ([#8607](https://github.com/astral-sh/ruff/pull/8607))
- Add hidden `--extension` to override inference of source type from file extension ([#8373](https://github.com/astral-sh/ruff/pull/8373))
### Configuration
- Account for selector specificity when merging `extend_unsafe_fixes` and `override extend_safe_fixes` ([#8444](https://github.com/astral-sh/ruff/pull/8444))
- Add support for disabling cache with `RUFF_NO_CACHE` environment variable ([#8538](https://github.com/astral-sh/ruff/pull/8538))
### Bug fixes
- \[`E721`\] Flag comparisons to `memoryview` ([#8485](https://github.com/astral-sh/ruff/pull/8485))
- Allow collapsed-ellipsis bodies in other statements ([#8499](https://github.com/astral-sh/ruff/pull/8499))
- Avoid `D301` autofix for `u` prefixed strings ([#8495](https://github.com/astral-sh/ruff/pull/8495))
- Only flag `flake8-trio` rules when `trio` import is present ([#8550](https://github.com/astral-sh/ruff/pull/8550))
- Reject more syntactically invalid Python programs ([#8524](https://github.com/astral-sh/ruff/pull/8524))
- Avoid raising `TRIO115` violations for `trio.sleep(...)` calls with non-number values ([#8532](https://github.com/astral-sh/ruff/pull/8532))
- Fix `F841` false negative on assignment to multiple variables ([#8489](https://github.com/astral-sh/ruff/pull/8489))
### Documentation
- Fix link to isort `known-first-party` ([#8562](https://github.com/astral-sh/ruff/pull/8562))
- Add notes on fix safety to a few rules ([#8500](https://github.com/astral-sh/ruff/pull/8500))
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