History

11happy f1c394ba76 double star as pow Signed-off-by: 11happy <bhuminjaysoni@gmail.com>		2025-12-01 09:06:53 +00:00
..
resources	[`parser`] Fix panic when parsing IPython escape command expressions (#21480 )	2025-11-24 05:40:27 +00:00
src	double star as pow	2025-12-01 09:06:53 +00:00
tests	[`parser`] Fix panic when parsing IPython escape command expressions (#21480 )	2025-11-24 05:40:27 +00:00
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.