pytest_configure: injecting variables into pytest namespace is mypy-incompatible with pytest 8

[sigma67]

Hello, thanks for your great and invaluable work on pytest. I just updated to pytest 8 and I'm getting linter errors on the following scenario:

https://docs.pytest.org/en/latest/deprecations.html#pytest-namespace

import pytest


def pytest_configure():
    pytest.my_symbol = MySymbol()

The error:

error: Module has no attribute "my_symbol" [attr-defined]

As this approach is mentioned in the docs I'd expect it to still work.

• Is there a way to still do this without disabling mypy everywhere the variable is used?
• Is there a different approach that is considered better?

Context: I'm using the variable to share data between a pytest plugin I develop and the module (i.e. module defines the variable - plugin uses it).

pytest 8.0.0, mypy 1.8.0

• a detailed description of the bug or problem you are having
• output of pip list from the virtual environment you are using
• pytest and operating system versions
• minimal example if possible

[RonnyPfannschmidt]

ever since the pytest_namespace hook has been deprecated and subsequently been removed, the suggesion is to have own symbols in own modules

pytest owns the pytest namespace - nothing else - make a own namespace to store own symbols

[sigma67]

Ok, thanks for the fast reply and the hint 👍