## Summary
Use the `find_keyword` helper function instead of reimplementing it.
Follows on from #5983 by doing a different search.
## Test Plan
`cargo test`
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
F507 should not be raised when the right-hand side value is a non-tuple
object.
```python
'%s' % (1, 2, 3) # throws
'%s' % [1, 2, 3] # doesn't throw
'%s' % {1, 2, 3} # doesn't throw
```
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Fix a regression introduced by
https://github.com/astral-sh/ruff/pull/5638. A multiline expression
can't be safely inserted into a format field.
### Example
```
> cat a.py
"{}".format(
[
1,
2,
3,
]
)
> cargo run -p ruff_cli -- check a.py --no-cache --select UP032 --fix
Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Running `target/debug/ruff check a.py --no-cache --select UP032 --fix`
error: Autofix introduced a syntax error in `a.py` with rule codes UP032: EOL while scanning string literal at byte offset 5
---
f"{[
1,
2,
3,
]}"
---
a.py:1:1: UP032 Use f-string instead of `format` call
Found 1 error.
```
## Test Plan
New test cases
## Summary
Checks that `append`, `extend` and `remove` methods are not called on
`__all__`. See [original
implementation](2a86db8271/pyi.py (L1133-L1138)).
```
$ flake8 --select Y026 crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:3:1: Y056 Calling ".append()" on "__all__" may not be supported by all type checkers (use += instead)
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:4:1: Y056 Calling ".extend()" on "__all__" may not be supported by all type checkers (use += instead)
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:5:1: Y056 Calling ".remove()" on "__all__" may not be supported by all type checkers (use += instead)
```
```
$ ./target/debug/ruff --select PYI026 crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi --no-cache
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:3:1: PYI056 Calling ".append()" on "__all__" may not be supported by all type checkers (use += instead)
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:4:1: PYI056 Calling ".extend()" on "__all__" may not be supported by all type checkers (use += instead)
crates/ruff/resources/test/fixtures/flake8_pyi/PYI056.pyi:5:1: PYI056 Calling ".remove()" on "__all__" may not be supported by all type checkers (use += instead)
Found 3 errors.
```
ref #848
## Test Plan
Snapshots and manual runs of flake8.
## Summary
These are skipped as an optimization, but it feels kind of unnecessary
and makes the code a bit more confusing than is worthwhile.
(non-`strict` is also by far the more popular setting, and the default.)
## Summary
I ran into this in the wild. It looks like Ruff will collapse the `else`
and `elif` branches here (i.e., it doesn't recognize that they're too
independent import blocks):
```python
if "sdist" in cmds:
_sdist = cmds["sdist"]
elif "setuptools" in sys.modules:
from setuptools.command.sdist import sdist as _sdist
else:
from setuptools.command.sdist import sdist as _sdist
from distutils.command.sdist import sdist as _sdist
```
Likely fallout from the `elif_else_branches` refactor.
## Summary
The `add_rule.py` script would create a test case that pointed to a file
that didn't exist when the linter is set to `"pylint"`. This PR fixes
that.
## Test Plan
`python scripts/add_rule.py --name DoTheThing --prefix PL --code C0999
--linter pylint`
**Summary** I accidentally merged earlier while the RustPython parser
rev was still pointing to the feature branch instead of to the merged
main. This make the rev point to the RustPython parser repo main again
**Summary** Fix implemented in
https://github.com/astral-sh/RustPython-Parser/pull/35: Previously,
empty lambda arguments (e.g. `lambda: 1`) would get the range of the
entire expression, which leads to incorrect comment placement. Now empty
lambda arguments get an empty range between the `lambda` and the `:`
tokens.
**Test Plan** Added a regression test.
149 instances of unstable formatting remaining.
```
$ cargo run --bin ruff_dev --release -- format-dev --stability-check --error-file formatter-ecosystem-errors.txt --multi-project target/checkouts > formatter-ecosystem-progress.txt
$ rg "Unstable formatting" target/formatter-ecosystem-errors.txt | wc -l
149
```
**Summary** Add script to shrink all formatter errors: This started as a
fun idea and turned out really useful: This script gives us a single
Python file with all formatter stability errors. I want to keep it
around to occasionally update #5828 so I added it to the git.
**Test Plan** None, this is a helper script
## Summary
**Don't minimize files that don't match in the first place** This adds a
sanity check to the minimizer script that the
input matches the condition (e.g. unstable formatting). Otherwise we run
through all checks with the whole file, which is extremely slow. It's
more reasonable for downstream usage to write an empty string to the
output file instead.
## Summary
Allow `respect_gitignore` even when not in a git repo
## Test Plan
Within the Ruff repository:
1. Renamed `.git` to `.hello-world`
2. Added `test.py` in root folder
3. Added `test.py` to `.gitignore`
4. Ran `cargo run --bin ruff -- check --no-cache --isolated --show-files
.` with
and without `--respect-gitignore` flag
fixes: #5930
## Summary
We now allow RUF015 to fix cases like:
```python
list(range(10))[0]
list(x.y)[0]
list(x["y"])[0]
```
Further, we fix generators like:
```python
[i + 1 for i in x][0]
```
By rewriting to `next(iter(i + 1 for i in x))`.
I've retained the special-case that rewrites `[i for i in x][0]` to
`next(iter(x))`.
Closes https://github.com/astral-sh/ruff/issues/5764.
## Summary
Similar to #5852 and a bunch of related PRs -- trying to move rules that
rely on point-in-time semantic analysis to _after_ the semantic model
building.
## Summary
Implements `PYI017` or `Y017` from `flake8-pyi` plug-in. Mirrors
[upstream
implementation](ceab86d16b/pyi.py (L1039-L1048)).
It checks for any assignment with more than 1 target or an assignment to
anything other than a name, and raises a violation for these in stub
files.
Couldn't find a clear and concise explanation for why this is to be
avoided and what is preferred for attribute cases like:
```python
a.b = int
```
So welcome some input there, to learn and to finish up the docs.
## Test Plan
Added test cases from upstream plug-in in a fixture (both `.py` and
`.pyi`). Added a few more.
## Issue link
Refers: https://github.com/astral-sh/ruff/issues/848
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## Summary
- Remove space when start of slice is empty
- Treat unary op except `not` as simple expression
## Test Plan
Add some simple tests for unary op expressions in slice
Closes#5673
This shrinks a good bit more than previously, which was helpful for all
the formatter bugs. fwiw i treat this as a very ad-hoc script since it's
mainly my ecosystem bug processing companion.
