ruff/crates/ruff_python_parser
Dylan c1eaf6ff72
Modify parsing of raise with cause when exception is absent (#15049)
When confronted with `raise from exc` the parser will now create a
`StmtRaise` that has `None` for the exception and `exc` for the cause.

Before, the parser created a `StmtRaise` with `from` for the exception,
no cause, and a spurious expression `exc` afterwards.
2024-12-19 13:36:32 +00:00
..
resources Modify parsing of raise with cause when exception is absent (#15049) 2024-12-19 13:36:32 +00:00
src Modify parsing of raise with cause when exception is absent (#15049) 2024-12-19 13:36:32 +00:00
tests Modify parsing of raise with cause when exception is absent (#15049) 2024-12-19 13:36:32 +00:00
Cargo.toml Use CompactString for Identifier (#12101) 2024-07-01 10:06:02 +02:00
CONTRIBUTING.md py-fuzzer: recommend using uvx rather than uv run to run the fuzzer (#14645) 2024-11-27 22:19:52 +00:00
README.md Add basic docs for the parser crate (#11199) 2024-04-29 17:08:07 +00:00

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.