Django 1.11: 'module' object has no attribute 'SubfieldBase'

[kdechant]

Trying to install widgy on a brand-new site running Django 1.11 and Mezzanine 2.4.3. Got the following error when running 'python manage.py migrate':

Traceback (most recent call last):
File "manage.py", line 14, in
execute_from_command_line(sys.argv)
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/django/core/management/init.py", line 363, in execute_from_command_line
utility.execute()
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/django/core/management/init.py", line 337, in execute
django.setup()
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/django/init.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models()
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/home/keith/sites/widgy/venv/lib/python3.4/importlib/init.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 2254, in _gcd_import
File "", line 2237, in _find_and_load
File "", line 2226, in _find_and_load_unlocked
File "", line 1200, in _load_unlocked
File "", line 1129, in _exec
File "", line 1471, in exec_module
File "", line 321, in _call_with_frames_removed
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/widgy/contrib/page_builder/models.py", line 19, in
from widgy.contrib.page_builder.db.fields import MarkdownField, VideoField, ImageField
File "/home/keith/sites/widgy/venv/lib/python3.4/site-packages/widgy/contrib/page_builder/db/fields.py", line 83, in
class VideoField(six.with_metaclass(models.SubfieldBase, models.URLField)):
AttributeError: 'module' object has no attribute 'SubfieldBase'

It seems that SubfieldBase was removed in Django 1.10.

[lockie]

Seems to be fixed in #383

[febrimaru]

make test-py
DJANGO_SETTINGS_MODULE=tests.settings_contrib py.test
Traceback (most recent call last):
File "/home/ikondev/.virtualenvs/WidgyBase/bin/py.test", line 11, in
sys.exit(main())
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/config/init.py", line 58, in main
config = _prepareconfig(args, plugins)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/config/init.py", line 185, in _prepareconfig
pluginmanager=pluginmanager, args=args
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/hooks.py", line 258, in call
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/manager.py", line 67, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/manager.py", line 61, in
firstresult=hook.spec_opts.get('firstresult'),
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 196, in _multicall
gen.send(outcome)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/helpconfig.py", line 89, in pytest_cmdline_parse
config = outcome.get_result()
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 76, in get_result
raise ex[1].with_traceback(ex[2])
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 180, in _multicall
res = hook_impl.function(*args)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/config/init.py", line 648, in pytest_cmdline_parse
self.parse(args)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/config/init.py", line 820, in parse
self._preparse(args, addopts=addopts)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/_pytest/config/init.py", line 782, in _preparse
early_config=self, args=args, parser=self._parser
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/hooks.py", line 258, in call
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/manager.py", line 67, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/manager.py", line 61, in
firstresult=hook.spec_opts.get('firstresult'),
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 201, in _multicall
return outcome.get_result()
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 76, in get_result
raise ex[1].with_traceback(ex[2])
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pluggy/callers.py", line 180, in _multicall
res = hook_impl.function(*args)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pytest_django/plugin.py", line 267, in pytest_load_initial_conftests
_setup_django()
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/pytest_django/plugin.py", line 165, in _setup_django
django.setup()
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/django/init.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models()
File "/home/ikondev/.virtualenvs/WidgyBase/lib/python3.5/site-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/usr/lib/python3.5/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 986, in _gcd_import
File "", line 969, in _find_and_load
File "", line 958, in _find_and_load_unlocked
File "", line 673, in _load_unlocked
File "", line 665, in exec_module
File "", line 222, in _call_with_frames_removed
File "/home/ikondev/PycharmProjects/WidgyBase/django-widgy-master/widgy/contrib/widgy_mezzanine/models.py", line 16, in
from widgy.contrib.page_builder.models import CalloutWidget, Callout
File "/home/ikondev/PycharmProjects/WidgyBase/django-widgy-master/widgy/contrib/page_builder/models.py", line 19, in
from widgy.contrib.page_builder.db.fields import MarkdownField, VideoField, ImageField
File "/home/ikondev/PycharmProjects/WidgyBase/django-widgy-master/widgy/contrib/page_builder/db/fields.py", line 83, in
class VideoField(six.with_metaclass(models.SubfieldBase, models.URLField)):
AttributeError: module 'django.db.models' has no attribute 'SubfieldBase'
Makefile:7: recipe for target 'test-py' failed
make: *** [test-py] Error 1

It seems the error is still present

[GooseSteps]

so, how to slove this problem? thanks