ImportWarning with PYTHONWARNINGS=all

[jleclanche]

I like to use PYTHONWARNINGS=all for my test runs. Unfortunately, anything that uses pytest-django includes a ton of warnings from pytest_django/plugin.py:

/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/_pytest/assertion/rewrite.py:7: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import imp
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:17: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .django_compat import is_django_unittest  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:18: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_db_setup  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/fixtures.py:9: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from . import live_server_helper
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/fixtures.py:11: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .django_compat import is_django_unittest
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/fixtures.py:12: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .pytest_compat import getfixturevalue
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/fixtures.py:14: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .lazy_django import get_django_version, skip_if_no_django
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:19: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_db_use_migrations  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:20: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_db_keepdb  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:21: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_db_modify_db_settings  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:22: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_db_modify_db_settings_xdist_suffix  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:23: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import _live_server_helper  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:24: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import admin_client  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:25: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import admin_user  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:26: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import client  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:27: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import db  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:28: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_user_model  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:29: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import django_username_field  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:30: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import live_server  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:31: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import rf  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:32: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import settings  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:33: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .fixtures import transactional_db  # noqa
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:34: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .pytest_compat import getfixturevalue
/home/adys/src/django/django-intenumfield/.tox/py36-django111/lib/python3.6/site-packages/pytest_django/plugin.py:36: ImportWarning: can't resolve package from __spec__ or __package__, falling back on __name__ and __path__
  from .lazy_django import (django_settings_is_configured,

Any idea why?

[pelme]

I can reproduce this with export PYTHONWARNINGS=all and running pytest in the pytest-django test suite.

This is probably another problem because of #415.

[blueyed]

Closing this as dupe of #415.