Consider exporting MonkeyPatch to enable type hints

[CaselIT]

I would like to use type hints for the monkeypatch fixture, but the class MonkeyPatch is not exported by pytest, so at the moment it needs to be imported from the internal package _pytest.

Example:

from pytest import MonkeyPatch 

def test_something(monkeypatch: MonkeyPatch):
    # monkeypatch has type hints here if the IDE supports them
    monkeypatch.delattr(...)

[RonnyPfannschmidt]

currently we dont export internal classes, and deciding which internal interfaces to export will be a really interesting future experience

[CaselIT]

Is it because MonkeyPatch should not be instantiated directly, or just to avoid polluting the pytest module?
Maybe they could be exposed in an interfaces module (or similar) so they can be imported with from pytest.interfaces import MonkeyPatch

[nicoddemus]

It it because MonkeyPatch should not be instantiated directly, or just to avoid polluting the pytest module?

The latter, specially regarding the name of the class and the API to initialize it.

Alternatively I remember that it was possible to provide some .pyi files instead (or something similar). I wonder if this would solve this problem as well.

[CaselIT]

@nicoddemus Thanks for the clarification.

I'm not familiar with how the strub files work. I'll try look into it.

[Zac-HD]

Closing as obsoleted by discussion in #3342.

[CaselIT]

I'll follow the other issue then. Thanks for the heads-up