pytest_config variable in a plugin is detected as a hook

[Sup3rGeo]

Hi,

In a plugin I have defined a module variable called pytest_config.

I had no problems in pytest-3.5.0 but when using pytest-3.6.0 I get this following error:

INTERNALERROR> pluggy.PluginValidationError: unknown hook 'pytest_config' in plugin <module 'xxxx.plugin' from 'c:\\xxxx\\plugin.py'>

Solution was trivial, just renamed to _pytest_config, but I would just like to inform this as it could be breaking backwards compatibility from 3.5.0 to 3.6.0.

[pytestbot]

GitMate.io thinks possibly related issues are #939 (terminalreporter plugin not available in pytest_configure hook), #732 (Unregistered plugin still receives hook calls), #1062 (hook specs are not set for other plugin hooks), #3385 (plugin hook pytest_runtest_teardown runs on skipped test), and #1821 (Pytest verifies if hooks are valid before processing "pytest_plugins" variable).

[nicoddemus]

Fixed by #3775 in 3.7.2. 👍