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A flake8 plugin to ban type hints.

Project description pre-commit

Unmaintained (2022-12-07)

I stopped maintaining this package as it has never been popular. Also, it isn’t really practical to ban all type hints, since tools like dataclasses use them at runtime.

A flake8 plugin to ban type hints.

This can be useful in code bases where you aren’t running type checking (yet?) but developers or their IDE’s add type hints that can be incorrect.


Python 3.7 to 3.11 supported.


First, install with pip:

python -m pip install flake8-no-types

Second, if you define Flake8’s select setting, add the NT prefix to it. Otherwise, the plugin should be active by default.

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NT001: No type hints.

Flags all forms of type hints:

  • Function annotations: def foo() -> int:

  • Variable hints: foo: int = 1

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