ruff/crates/ruff_python_parser/src
Brent Westbrook b3c884f4f3
[syntax-errors] Parenthesized keyword argument names after Python 3.8 (#16482)
Summary
--

Unlike the other syntax errors detected so far, parenthesized keyword
arguments are only allowed *before* 3.8. It sounds like they were only
accidentally allowed before that [^1].

As an aside, you get a pretty confusing error from Python for this, so
it's nice that we can catch it:

```pycon
>>> def f(**kwargs): ...
... f((a)=1)
...
  File "<python-input-0>", line 2
    f((a)=1)
       ^^^
SyntaxError: expression cannot contain assignment, perhaps you meant "=="?
>>>
```
Test Plan
--
Inline tests.

[^1]: https://github.com/python/cpython/issues/78822
2025-03-06 12:18:13 -05:00
..
lexer Mention that Cursor is based on rustc's implementation. (#12109) 2024-06-30 16:53:25 +01:00
parser [syntax-errors] Parenthesized keyword argument names after Python 3.8 (#16482) 2025-03-06 12:18:13 -05:00
snapshots Update insta snapshots (#14366) 2024-11-15 19:31:15 +01:00
error.rs [syntax-errors] Parenthesized keyword argument names after Python 3.8 (#16482) 2025-03-06 12:18:13 -05:00
lexer.rs bump MSRV to 1.83 (#16294) 2025-02-26 06:12:43 -08:00
lib.rs Document LinterResult::has_syntax_error and add Parsed::has_no_syntax_errors (#16443) 2025-03-04 08:35:38 -05:00
string.rs Upgrade to Rust 1.81 (#13265) 2024-09-06 15:09:09 +02:00
token.rs [pylint] Do not offer fix for raw strings (PLE251) (#16132) 2025-02-13 08:36:11 +00:00
token_set.rs Replace LALRPOP parser with hand-written parser (#10036) 2024-04-18 17:57:39 +05:30
token_source.rs Use TokenSource to find new location for re-lexing (#12060) 2024-06-27 17:12:39 +05:30
typing.rs Rename ExprStringLiteral::as_unconcatenated_string() to ExprStringLiteral::as_single_part_string() (#16253) 2025-02-19 16:06:57 +00:00