4.8. CI/CD Type Checking

4.8.1. mypy

• https://mypy-lang.org/

• https://github.com/python/mypy

$ python -m pip install mypy
$ mypy FILE

setup.cfg

[mypy]
strict_optional = True

4.8.2. pyre-check

• https://pyre-check.org/

$ python -m pip install pyre-check

4.8.3. pytypes