Importing module of pytest plugin triggers a PluginValidationError: unknown hook

[abotalov]

I use Pytest 3.6.4.

When I import from pytest_selenium import pytest_selenium and then use pytest_selenium in conftest.py I get PluginValidationError: unknown hook.

This error has been also encountered by some users:

• jantman/biweeklybudget@8184571
• Unknown hook with latest pytest pytest-django#607
• shawnbrown/datatest@5ad76f3

How is one expected to deal with it?

[nicoddemus]

Hi @abotalov,

One way is to rename the module to something else that doesn't have the pytest_ prefix:

from pytest_selenium import pytest_selenium as pselenium

I suppose pluggy could check if the object is actually callable to consider it as a candidate for a hook, which would work for this case.

cc @RonnyPfannschmidt @tgoodlet

[RonnyPfannschmidt]

pytest-dev/pluggy#91 should have fixed it via pytest-dev/pluggy#17 and pytest-dev/pluggy@ca39b4b
https://github.com/pytest-dev/pytest/blob/master/src/_pytest/config/__init__.py#L264 might be at fault