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I’ve had this same thought. Ruff doesn’t support extensions / custom lint rules that I’m aware of, so maybe don’t get your hopes up.

• the_mitsuhiko 1y ago
  Not supporting plugins for a type checker to me is a plus. It’s quite frustrating that some Python projects only typecheck if you have plugins. That is a major source of frustration.
  • Redoubts 1y ago
    I mean that kind of code exists; things like attrs are too magical otherwise
  • zem 1y ago
    python packages that do a lot of metaprot can only be properly type checked if you replicate that metaprogramming at the type level. e.g. if dataclasses were not part of the standard library they would need a plug-in to be handled correctly.