Problem with Django's Tests after South Installation

Question

After installing South, some errors started happening in my tests. I've tried SKIP_SOUTH_TESTS=True and SOUTH_TESTS_MIGRATE = False, but with no luck. Here is the output:

Creating test database for alias 'default'...
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ERROR: testCharFieldCreate (django_extensions.tests.encrypted_fields.EncryptedFieldsTestCase)
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Traceback (most recent call last):
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django_extensions/tests/encrypted_fields.py", line 31, in setUp
    call_command('syncdb', verbosity=0)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/__init__.py", line 166, in call_command
    return klass.execute(*args, **defaults)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/sql.py", line 190, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/auth/management/__init__.py", line 30, in create_permissions
    ctype = ContentType.objects.get_for_model(klass)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 40, in get_for_model
    self._add_to_cache(self.db, ct)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 70, in _add_to_cache
    key = (model._meta.app_label, model._meta.object_name.lower())
AttributeError: 'NoneType' object has no attribute '_meta'

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ERROR: testCharFieldRead (django_extensions.tests.encrypted_fields.EncryptedFieldsTestCase)
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Traceback (most recent call last):
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django_extensions/tests/encrypted_fields.py", line 31, in setUp
    call_command('syncdb', verbosity=0)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/__init__.py", line 166, in call_command
    return klass.execute(*args, **defaults)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/sql.py", line 190, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/auth/management/__init__.py", line 30, in create_permissions
    ctype = ContentType.objects.get_for_model(klass)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 40, in get_for_model
    self._add_to_cache(self.db, ct)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 70, in _add_to_cache
    key = (model._meta.app_label, model._meta.object_name.lower())
AttributeError: 'NoneType' object has no attribute '_meta'

======================================================================
ERROR: testTextFieldCreate (django_extensions.tests.encrypted_fields.EncryptedFieldsTestCase)
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Traceback (most recent call last):
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django_extensions/tests/encrypted_fields.py", line 31, in setUp
    call_command('syncdb', verbosity=0)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/__init__.py", line 166, in call_command
    return klass.execute(*args, **defaults)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/sql.py", line 190, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/auth/management/__init__.py", line 30, in create_permissions
    ctype = ContentType.objects.get_for_model(klass)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 40, in get_for_model
    self._add_to_cache(self.db, ct)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 70, in _add_to_cache
    key = (model._meta.app_label, model._meta.object_name.lower())
AttributeError: 'NoneType' object has no attribute '_meta'

======================================================================
ERROR: testTextFieldRead (django_extensions.tests.encrypted_fields.EncryptedFieldsTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django_extensions/tests/encrypted_fields.py", line 31, in setUp
    call_command('syncdb', verbosity=0)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/__init__.py", line 166, in call_command
    return klass.execute(*args, **defaults)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/core/management/sql.py", line 190, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/auth/management/__init__.py", line 30, in create_permissions
    ctype = ContentType.objects.get_for_model(klass)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 40, in get_for_model
    self._add_to_cache(self.db, ct)
  File "/home/rodrigo/Workspace/.virtualenvs/nossodesconto_django_fork/lib/python2.6/site-packages/django/contrib/contenttypes/models.py", line 70, in _add_to_cache
    key = (model._meta.app_label, model._meta.object_name.lower())
AttributeError: 'NoneType' object has no attribute '_meta'

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Ran 401 tests in 16.147s

Any suggestions or ideas?

Many thanks

Answer 1

The problem is known. Some special data fields are not South complient, it include the encrypted fields from django extension, here the issue and the patch: https://github.com/django-extensions/django-extensions/pull/103

edit: the patch has been merged. it's in master and will be in next release.