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11happy bce4e2ca2b check start location for target and global Signed-off-by: 11happy <soni5happy@gmail.com>		2025-12-14 13:45:05 +05:30
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resources	[syntax-error] Default type parameter followed by non-default type parameter (#21657 )	2025-12-03 12:01:31 +05:30
src	check start location for target and global	2025-12-14 13:45:05 +05:30
tests	[syntax-error] Default type parameter followed by non-default type parameter (#21657 )	2025-12-03 12:01:31 +05:30
CONTRIBUTING.md	Update usage instructions and lockfile for py-fuzzer script (#20940 )	2025-10-17 15:57:17 +01:00
Cargo.toml	[ty] Add environment variable to dump Salsa memory usage stats (#18928 )	2025-06-26 21:27:51 +00:00
README.md	Add basic docs for the parser crate (#11199 )	2024-04-29 17:08:07 +00:00

README.md

Ruff Python Parser

Ruff's Python parser is a hand-written recursive descent parser which can parse Python source code into an Abstract Syntax Tree (AST). It also utilizes the Pratt parsing technique to parse expressions with different precedence.

Try out the parser in the playground.

Python version support

The parser supports the latest Python syntax, which is currently Python 3.12. It does not throw syntax errors if it encounters a syntax feature that is not supported by the target-version. This will be fixed in a future release (see https://github.com/astral-sh/ruff/issues/6591).

Contributing

Refer to the contributing guidelines to get started and GitHub issues with the parser label for issues that need help.