ClassNotFoundError: No class 'Applicator' found in oscar.apps.offer.utils
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Leonardo Otero
Apr 7, 2014, 3:57:24 PM4/7/14
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I'm having an erratic exception which seems to be causing an Internal Server Error.
From time to time I receive the following error:
ClassNotFoundError: No class 'Applicator' found in oscar.apps.offer.utils
Do you know what could be causing this problem with OSCAR? Is it something solved in a newer version?
Stacktrace:
2014-04-06 23:23:54 [4923] [INFO] Using worker: sync
2014-04-06 23:23:54 [4928] [INFO] Booting worker with pid: 4928
2014-04-06 23:23:54 [4929] [INFO] Booting worker with pid: 4929
2014-04-06 23:23:54 [4930] [INFO] Booting worker with pid: 4930
2014-04-06 23:26:35 [4929] [ERROR] Error handling request
Traceback (most recent call last):
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/gunicorn/workers/sync.py", line 131, in handle_request
respiter = self.wsgi(environ, resp.start_response)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/handlers/wsgi.py", line 236, in __call__
self.load_middleware()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/handlers/base.py", line 51, in load_middleware
mod = import_module(mw_module)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/ublistore/src/oscar/apps/basket/middleware.py", line 8, in <module>
Applicator = get_class('offer.utils', 'Applicator')
File "/var/www/ublistore/src/oscar/core/loading.py", line 18, in get_class
return get_classes(module_label, [classname])[0]
File "/var/www/ublistore/src/oscar/core/loading.py", line 42, in get_classes
imported_module = __import__(module_path, fromlist=classnames)
File "/var/www/ublistore/src/oscar/apps/offer/utils.py", line 8, in <module>
ConditionalOffer = get_model('offer', 'ConditionalOffer')
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 230, in get_model
self._populate()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 72, in _populate
self.load_app(app_name, True)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 96, in load_app
models = import_module('.models', app_name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/datacash/models.py", line 8, in <module>
from .the3rdman import signals
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/datacash/the3rdman/__init__.py", line 2, in <module>
from .utils import build_data_dict
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/datacash/the3rdman/utils.py", line 3, in <module>
Order = get_model('order', 'Order')
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 230, in get_model
self._populate()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 72, in _populate
self.load_app(app_name, True)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 96, in load_app
models = import_module('.models', app_name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/debug_toolbar/models.py", line 63, in <module>
patch_root_urlconf()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/debug_toolbar/models.py", line 51, in patch_root_urlconf
reverse('djdt:render_panel')
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 467, in reverse
app_list = resolver.app_dict[ns]
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 311, in app_dict
self._populate()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 263, in _populate
for pattern in reversed(self.url_patterns):
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 347, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 342, in urlconf_module
self._urlconf_module = import_module(self.urlconf_name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/ublistore/src/sites/demo/urls.py", line 6, in <module>
from oscar.app import shop
File "/var/www/ublistore/src/oscar/app.py", line 12, in <module>
class Shop(Application):
File "/var/www/ublistore/src/oscar/app.py", line 17, in Shop
...skipping...
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/debug_toolbar/models.py", line 63, in <module>
patch_root_urlconf()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/debug_toolbar/models.py", line 51, in patch_root_urlconf
reverse('djdt:render_panel')
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 467, in reverse
app_list = resolver.app_dict[ns]
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 311, in app_dict
self._populate()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 263, in _populate
for pattern in reversed(self.url_patterns):
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 347, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/urlresolvers.py", line 342, in urlconf_module
self._urlconf_module = import_module(self.urlconf_name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/ublistore/src/sites/demo/urls.py", line 6, in <module>
from oscar.app import shop
File "/var/www/ublistore/src/oscar/app.py", line 12, in <module>
class Shop(Application):
File "/var/www/ublistore/src/oscar/app.py", line 17, in Shop
basket_app = get_class('basket.app', 'application')
File "/var/www/ublistore/src/oscar/core/loading.py", line 18, in get_class
return get_classes(module_label, [classname])[0]
File "/var/www/ublistore/src/oscar/core/loading.py", line 55, in get_classes
imported_local_module = __import__(local_app, fromlist=classnames)
File "/var/www/ublistore/src/sites/demo/apps/basket/app.py", line 1, in <module>
from oscar.apps.basket import app
File "/var/www/ublistore/src/oscar/apps/basket/app.py", line 4, in <module>
from oscar.apps.basket import views
File "/var/www/ublistore/src/oscar/apps/basket/views.py", line 18, in <module>
Applicator = get_class('offer.utils', 'Applicator')
File "/var/www/ublistore/src/oscar/core/loading.py", line 18, in get_class
return get_classes(module_label, [classname])[0]
File "/var/www/ublistore/src/oscar/core/loading.py", line 43, in get_classes
return _pluck_classes([imported_module], classnames)
File "/var/www/ublistore/src/oscar/core/loading.py", line 94, in _pluck_classes
classname, ", ".join(packages)))
ClassNotFoundError: No class 'Applicator' found in oscar.apps.offer.utils
2014-04-07 12:07:38 [1063] [ERROR] Error handling request
Traceback (most recent call last):
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/gunicorn/workers/sync.py", line 131, in handle_request
respiter = self.wsgi(environ, resp.start_response)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/handlers/wsgi.py", line 236, in __call__
self.load_middleware()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/core/handlers/base.py", line 51, in load_middleware
mod = import_module(mw_module)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/ublistore/src/oscar/apps/basket/middleware.py", line 8, in <module>
Applicator = get_class('offer.utils', 'Applicator')
File "/var/www/ublistore/src/oscar/core/loading.py", line 18, in get_class
return get_classes(module_label, [classname])[0]
File "/var/www/ublistore/src/oscar/core/loading.py", line 42, in get_classes
imported_module = __import__(module_path, fromlist=classnames)
File "/var/www/ublistore/src/oscar/apps/offer/utils.py", line 8, in <module>
ConditionalOffer = get_model('offer', 'ConditionalOffer')
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 230, in get_model
self._populate()
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 72, in _populate
self.load_app(app_name, True)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/db/models/loading.py", line 96, in load_app
models = import_module('.models', app_name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/Django-1.5.5-py2.7.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/ubliadmin/.virtualenvs/env/local/lib/python2.7/site-packages/datacash/models.py", line 8, in <module>
from .the3rdman import signals
:
Thanks in advance,
Leo
On Mon, Apr 7, 2014 at 3:50 PM, Łukasz Sitko <cit...@gmail.com> wrote:
Anybody help how can I set up faceting in oscar when I use Whoosh search engine?--
https://github.com/tangentlabs/django-oscar
http://django-oscar.readthedocs.org/en/latest/
https://twitter.com/django_oscar
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Maik Hoepfel
Apr 8, 2014, 3:21:16 AM4/8/14
to django...@googlegroups.com
Hi Leo,
looks like you're using the Debug Toolbar (hopefully not in production!)
The URL patching of the version 1.0 of it doesn't play nice with Oscar
and is quick to cause circular imports. Switch to the explicit setup and
you should be alright:
http://django-debug-toolbar.readthedocs.org/en/latest/installation.html#explicit-setup
Cheers,
Maik
> <mailto:django-oscar...@googlegroups.com>.
> <https://groups.google.com/d/msgid/django-oscar/CAGY3hqu4Fc0Xp8edvNFHZgf6hZkO0dDu%2BKvm_96g45gmsNUx4Q%40mail.gmail.com?utm_medium=email&utm_source=footer>.
looks like you're using the Debug Toolbar (hopefully not in production!)
The URL patching of the version 1.0 of it doesn't play nice with Oscar
and is quick to cause circular imports. Switch to the explicit setup and
you should be alright:
http://django-debug-toolbar.readthedocs.org/en/latest/installation.html#explicit-setup
Cheers,
Maik
> Visit this group at http://groups.google.com/group/django-oscar.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-oscar/67731b17-0078-4827-8fd3-2974c469321b%40googlegroups.com
> <https://groups.google.com/d/msgid/django-oscar/67731b17-0078-4827-8fd3-2974c469321b%40googlegroups.com?utm_medium=email&utm_source=footer>.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-oscar/67731b17-0078-4827-8fd3-2974c469321b%40googlegroups.com
> --
> https://github.com/tangentlabs/django-oscar
> http://django-oscar.readthedocs.org/en/latest/
> https://twitter.com/django_oscar
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> https://twitter.com/django_oscar
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