Pytester calling pytest_configure hook a second time

[Emantor]

Hi,

within the labgrid pytest plugin configure hook we recently introduced registration of a logging handler. The registration asserts when trying to register the same handler a second time, so we run into errors when the pytester plugin is used, see labgrid-project/labgrid#684. Is the pytest_configure hook expected to be callable multiple times? If so we should document this for all hooks.

Thanks,
Rouven

[RonnyPfannschmidt]

the hook is called exactly once per pytest configuration

when doing in process testing with pytester multiple pytest configurations are set up and used for test execution