ruff/crates/ruff_python_formatter
Dylan 9bbf4987e8
Implement template strings (#17851)
This PR implements template strings (t-strings) in the parser and
formatter for Ruff.

Minimal changes necessary to compile were made in other parts of the code (e.g. ty, the linter, etc.). These will be covered properly in follow-up PRs.
2025-05-30 15:00:56 -05:00
..
resources/test/fixtures Implement template strings (#17851) 2025-05-30 15:00:56 -05:00
src Implement template strings (#17851) 2025-05-30 15:00:56 -05:00
tests Implement template strings (#17851) 2025-05-30 15:00:56 -05:00
Cargo.toml [red-knot] Add 'Format document' to playground (#17217) 2025-04-07 09:26:03 +02:00
CONTRIBUTING.md Update pre-commit dependencies (#14719) 2024-12-02 06:02:56 +00:00
generate.py Implement template strings (#17851) 2025-05-30 15:00:56 -05:00
orphan_rules_in_the_formatter.svg Generate FormatRule definitions (#4724) 2023-06-01 08:38:53 +02:00
README.md Add f-string formatting to the docs (#15367) 2025-01-09 10:20:06 +01:00

Ruff Formatter

The Ruff formatter is an extremely fast Python code formatter that ships as part of the ruff CLI.

Goals

The formatter is designed to be a drop-in replacement for Black, but with an excessive focus on performance and direct integration with Ruff.

Specifically, the formatter is intended to emit near-identical output when run over Black-formatted code. When run over extensive Black-formatted projects like Django and Zulip, > 99.9% of lines are formatted identically. When migrating an existing project from Black to Ruff, you should expect to see a few differences on the margins, but the vast majority of your code should be unchanged.

If you identify deviations in your project, spot-check them against the intentional deviations enumerated below, as well as the unintentional deviations filed in the issue tracker. If you've identified a new deviation, please file an issue.

When run over non-Black-formatted code, the formatter makes some different decisions than Black, and so more deviations should be expected, especially around the treatment of end-of-line comments. For details, see Style Guide.

Getting started

Head to The Ruff Formatter for usage instructions and a comparison to Black.