Testing Tools

mypy

Open Source Updated 26d ago

Optional static typing for Python

pip install mypy

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Optional static type checker for Python — add type annotations, mypy catches type errors before runtime. Supports gradual typing (annotate incrementally), generic types, and full PEP 484 compliance. The standard type checker in Python CI pipelines.

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pythontype-checkingstaticmypyannotationsstrict
View on GitHub ★ 20,338Python
Active — last commit 26d ago3110 open issues
Using this saves ~45k tokens vs building from scratch
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