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Ruff is a very fast linter implemented in Rust and it can act as a drop-in replacement for flake8. When running the same set of rules across all files in mozilla-central (without mozlint), flake8 takes 900 seconds whereas ruff takes 0.9 seconds. Ruff also implements rules from other popular Python linters such as pylint, isort and pyupgrade. There are even plans to implement feature parity with black in the future. Ultimately, it can become our one stop shop for all Python linting and formatting. This stack will swap out all our Python lint tools for ruff (excluding black for now). Differential Revision: https://phabricator.services.mozilla.com/D172313
This directory contains common Python code. The basic rule is that if Python code is cross-module (that's "module" in the Mozilla meaning - as in "module ownership") and is MPL-compatible, it should go here. What should not go here: * Vendored python modules (use third_party/python instead) * Python that is not MPL-compatible (see other-licenses/) * Python that has good reason to remain close to its "owning" (Mozilla) module (e.g. it is only being consumed from there). Historical information can be found at https://bugzilla.mozilla.org/show_bug.cgi?id=775243 https://bugzilla.mozilla.org/show_bug.cgi?id=1346025