From 6660b11422d299e732d79cc6f5347da3ca300aae Mon Sep 17 00:00:00 2001
From: GiGaGon <107241144+MeGaGiGaGon@users.noreply.github.com>
Date: Fri, 11 Jul 2025 14:07:34 -0700
Subject: [PATCH] [`pyupgrade`] Make example error out-of-the-box (`UP023`)
 (#19291)

## Summary

Part of #18972

This PR makes [deprecated-c-element-tree
(UP023)](https://docs.astral.sh/ruff/rules/deprecated-c-element-tree/#deprecated-c-element-tree-up023)'s
example error out-of-the-box. I have no clue why the `import
xml.etree.cElementTree` and `from xml.etree import cElementTree` cases
are specifically carved out if they do not have an `as ...`, but the
tests explicitly call this out, and that's how it is in `pyupgrade`'s
source as well.


https://github.com/astral-sh/ruff/blob/b5c5f710fc12b5c512a2e5351684b8ffdf33761f/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP023.py#L23-L31

[Old example](https://play.ruff.rs/632b8ce1-393d-45e5-9504-5444ae71a0d8)
```py
from xml.etree import cElementTree
```

[New example](https://play.ruff.rs/fef4d378-8c54-41b2-8778-2d02bcbbd7d3)
```py
from xml.etree import cElementTree as ET
```

The "Use instead" section was also updated similarly.

## Test Plan

<!-- How was it tested? -->

N/A, no functionality/tests affected
---
 .../src/rules/pyupgrade/rules/deprecated_c_element_tree.rs    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/ruff_linter/src/rules/pyupgrade/rules/deprecated_c_element_tree.rs b/crates/ruff_linter/src/rules/pyupgrade/rules/deprecated_c_element_tree.rs
index ab1bd978f7..03dfec9322 100644
--- a/crates/ruff_linter/src/rules/pyupgrade/rules/deprecated_c_element_tree.rs
+++ b/crates/ruff_linter/src/rules/pyupgrade/rules/deprecated_c_element_tree.rs
@@ -14,12 +14,12 @@ use crate::{AlwaysFixableViolation, Edit, Fix};
 ///
 /// ## Example
 /// ```python
-/// from xml.etree import cElementTree
+/// from xml.etree import cElementTree as ET
 /// ```
 ///
 /// Use instead:
 /// ```python
-/// from xml.etree import ElementTree
+/// from xml.etree import ElementTree as ET
 /// ```
 ///
 /// ## References