I'm a little late in reporting on this topic, but Ruff put out an update in April 2024 that includes a hand-written recursive descent parser. This update

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Ruff released an update with a new hand-written parser, making the Python linter and formatter 20-40% faster.

The Fastest Python Linter and Formatter Just Got Faster!

<p>Thanks for the update! This will definitely help me speed up the process of creating bots.</p>
