uv

MyPy --install-types without pip

The --install-types flag requires pip. To add manually without version constraints:

cat .mypy_cache/missing_stubs  # show what will be added
uv add -r .mypy_cache/missing_stubs --group=types --raw-sources

Where --raw-sources avoids locking specific versions. This is a hack. No official solution exists yet; see https://github.com/python/mypy/issues/10600.