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Re:Astral – "We're building a new static type checker for Py... by Redoubts on Thursday January 30, 2025 @02:28PM (#42881241)
Ditto, same order of magnitude experience; at least for --no-incremental runs.

Part of the problem for me is how easily caches get invalidated. A type error somewhere will invalidate the cache of the file and anything in its dependency tree, which blows a huge hole runtime.

Checking 1 file in a big repo can take 10 seconds, or more than a minute as a result.

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