specs = <module 'ipatests.pytest_plugins' from 'freeipa/.tox/py36/lib/python3.6/site-packages/ipatests/pytest_plugins/__init__.py'>

    def _get_plugin_specs_as_list(specs):
        """
        Parses a list of "plugin specs" and returns a list of plugin names.

        Plugin specs can be given as a list of strings separated by "," or already as a list/tuple in
        which case it is returned as a list. Specs can also be `None` in which case an
        empty list is returned.
        """
        if specs is not None:
            if isinstance(specs, str):
                specs = specs.split(",") if specs else []
            if not isinstance(specs, (list, tuple)):
                raise UsageError(
                    "Plugin specs must be a ','-separated string or a "
>                   "list/tuple of strings for plugin names. Given: %r" % specs
                )
E               _pytest.config.exceptions.UsageError: Plugin specs must be a ','-separated string or a list/tuple of strings for plugin names. Given: <module 'ipatests.pytest_plugins' from 'freeipa/.tox/py36/lib/python3.6/site-packages/ipatests/pytest_plugins/__init__.py'>

lib/python3.6/site-packages/_pytest/config/__init__.py:513: UsageError