When a missing import is found in a script, this changes the error message displayed to indicate that there's a missing import, rather than giving a generic error message similar to the one raised when the script does not exist

For a case such as this: test_script.py

import nonexistrentpackage

def run():
    print("Test")

The error message raised previously was:

No (valid) module for script 'test_script' found
Try running with a higher verbosity level like: -v2 or -v3

This changes the error to be more descriptive, without requiring the user to change the default verbosity mode, i.e.

Cannot import module 'scripts.test_script': No module named nonexistent.
No (valid) module for script 'test_script' found
Try running with a higher verbosity level like: -v2 or -v3

After the update from 1.5.5 to 1.5.6 this error happens whenever I run makemigrations. Apparently the django can't handle the timefield changes. Btw, we're talking 1.7.* I did not try 1.8.*

Traceback (most recent call last):
  File "./manage.py", line 11, in <module>
    execute_from_command_line(sys.argv)
  File "env/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "env/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "env/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "env/lib/python2.7/site-packages/raven/contrib/django/management/__init__.py", line 41, in new_execute
    return original_func(self, *args, **kwargs)
  File "env/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
    output = self.handle(*args, **options)
  File "env/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 124, in handle
    self.write_migration_files(changes)
  File "/env/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 152, in write_migration_files
    migration_string = writer.as_string()
  File "env/lib/python2.7/site-packages/django/db/migrations/writer.py", line 131, in as_string
    operation_string, operation_imports = OperationWriter(operation).serialize()
  File "env/lib/python2.7/site-packages/django/db/migrations/writer.py", line 88, in serialize
    arg_string, arg_imports = MigrationWriter.serialize(arg_value)
  File "env/lib/python2.7/site-packages/django/db/migrations/writer.py", line 333, in serialize
    return cls.serialize_deconstructed(path, args, kwargs)
  File "env/lib/python2.7/site-packages/django/db/migrations/writer.py", line 239, in serialize_deconstructed
    arg_string, arg_imports = cls.serialize(arg)
  File "env/lib/python2.7/site-packages/django/db/migrations/writer.py", line 409, in serialize
    "topics/migrations/#migration-serializing" % value
ValueError: Cannot serialize: <class django.db.models.fields.NOT_PROVIDED at 0x105702050>
There are some values Django cannot serialize into migration files.
For more, see https://docs.djangoproject.com/en/dev/topics/migrations/#migration-serializing

Fixes #1011

This PR allows the user to span ForeignKey relationships with AutoSlugField's populate_from argument. It also allows the user use model methods in the populate_from argument.

@trbs please let me know any feedback or suggestions? Thanks again for your work on this library, and for considering this PR!

When working on projects with complex relations it can get confusing to remember how to refer to these relationships in queries. Additionally, sometimes it's annoying to dig through the models.py to find the field name of a particular field. The 'list_fields' command lists out all fields for each model within each installed app.

Resolves #801

The issue is that if allow_duplicates is True, create_slug will return the slug directly without setting the attribute (field name) on the model instance. find_unique takes care of this in case allow_duplicates is False or not set.

from docs looks like there's a new setup() method.

---------------------------------------------------------------------------
AppRegistryNotReady                       Traceback (most recent call last)
<ipython-input-1-7474fc4fe95e> in <module>()
      [CODE ACCESSING MODELS VIA DJANGO ORM]

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\manager.pyc in manager_method(self, *args, **kwargs)
     90         def create_method(name, method):
     91             def manager_method(self, *args, **kwargs):
---> 92                 return getattr(self.get_queryset(), name)(*args, **kwargs)
     93             manager_method.__name__ = method.__name__
     94             manager_method.__doc__ = method.__doc__

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\query.pyc in filter(self, *args, **kwargs)
    687         set.
    688         """
--> 689         return self._filter_or_exclude(False, *args, **kwargs)
    690 
    691     def exclude(self, *args, **kwargs):

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\query.pyc in _filter_or_exclude(self, negate, *args, **kwargs)
    705             clone.query.add_q(~Q(*args, **kwargs))
    706         else:
--> 707             clone.query.add_q(Q(*args, **kwargs))
    708         return clone
    709 

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\sql\query.pyc in add_q(self, q_object)
   1285         existing_inner = set(
   1286             (a for a in self.alias_map if self.alias_map[a].join_type == self.INNER))
-> 1287         clause, require_inner = self._add_q(where_part, self.used_aliases)
   1288         self.where.add(clause, AND)
   1289         for hp in having_parts:

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\sql\query.pyc in _add_q(self, q_object, used_aliases, branch_negated, current_negated)
   1312                 child_clause, needed_inner = self.build_filter(
   1313                     child, can_reuse=used_aliases, branch_negated=branch_negated,
-> 1314                     current_negated=current_negated, connector=connector)
   1315                 joinpromoter.add_votes(needed_inner)
   1316             target_clause.add(child_clause, connector)

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\sql\query.pyc in build_filter(self, filter_expr, branch_negated, current_negated, can_reuse, connector)
   1136         if not arg:
   1137             raise FieldError("Cannot parse keyword query %r" % arg)
-> 1138         lookups, parts, reffed_aggregate = self.solve_lookup_type(arg)
   1139 
   1140         # Work out the lookup type and remove it from the end of 'parts',

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\sql\query.pyc in solve_lookup_type(self, lookup)
   1074             if aggregate:
   1075                 return aggregate_lookups, (), aggregate
-> 1076         _, field, _, lookup_parts = self.names_to_path(lookup_splitted, self.get_meta())
   1077         field_parts = lookup_splitted[0:len(lookup_splitted) - len(lookup_parts)]
   1078         if len(lookup_parts) == 0:

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\sql\query.pyc in names_to_path(self, names, opts, allow_many, fail_on_missing)
   1337                 name = opts.pk.name
   1338             try:
-> 1339                 field, model, direct, m2m = opts.get_field_by_name(name)
   1340             except FieldDoesNotExist:
   1341                 # We didn't found the current field, so move position back

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\options.pyc in get_field_by_name(self, name)
    414                 return self._name_map[name]
    415             except AttributeError:
--> 416                 cache = self.init_name_map()
    417                 return cache[name]
    418         except KeyError:

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\options.pyc in init_name_map(self)
    443         # We intentionally handle related m2m objects first so that symmetrical
    444         # m2m accessor names can be overridden, if necessary.
--> 445         for f, model in self.get_all_related_m2m_objects_with_model():
    446             cache[f.field.related_query_name()] = (f, model, False, True)
    447         for f, model in self.get_all_related_objects_with_model():

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\options.pyc in get_all_related_m2m_objects_with_model(self)
    559             cache = self._related_many_to_many_cache
    560         except AttributeError:
--> 561             cache = self._fill_related_many_to_many_cache()
    562         return list(six.iteritems(cache))
    563 

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\db\models\options.pyc in _fill_related_many_to_many_cache(self)
    573                 else:
    574                     cache[obj] = model
--> 575         for klass in self.apps.get_models():
    576             if not klass._meta.swapped:
    577                 for f in klass._meta.local_many_to_many:

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\utils\lru_cache.pyc in wrapper(*args, **kwds)
     99                         stats[HITS] += 1
    100                         return result
--> 101                     result = user_function(*args, **kwds)
    102                     cache[key] = result
    103                     stats[MISSES] += 1

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\apps\registry.pyc in get_models(self, app_mod, include_auto_created, include_deferred, include_swapped)
    166         Set the corresponding keyword argument to True to include such models.
    167         """
--> 168         self.check_models_ready()
    169         if app_mod:
    170             warnings.warn(

C:\Python\lib\site-packages\django-1.7c1-py2.7.egg\django\apps\registry.pyc in check_models_ready(self)
    129         """
    130         if not self.models_ready:
--> 131             raise AppRegistryNotReady("Models aren't loaded yet.")
    132 
    133     def get_app_configs(self):

AppRegistryNotReady: Models aren't loaded yet.

Pull request for #288

I've added Python 3 support using six, which I added to install_requires.

I couldn't find any information about the supported python versions of django-extensions, but if 2.6 is required at least (there are no entries with a version < 2.6 in tox.ini), then we could remove utils/uuid.py

Hello,

I added support for a random character field. Its purpose is to create an unique id unrelated to the database id to prevent site walking and sequential attacks on something like a unsubscribe link. A sample use case would be a link shortening service like bit.ly, http://bit.ly/1AbL4UC.

Non-Breaking changes:

• Factored out query logic to ensure uniqueness to BaseUniqueField.
• The field value factories have been moved to generators.
• Added mock as a test requirement.

Possibly breaking change:

• The slug field check will only be tried 100 times. Previously there was no limit. That was done because the field value factories have been moved to a generators.

Please let me know your comments and feedback. I enjoyed working on this code very much!

Hey there, I'm getting test failures when using Django-extensions 1.6.0. The only thing we use from Django-extensions is the JSONField, and using 1.6.0 over 1.5.9 gets some strange JSON errors: ValueError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1).

I've done some digging and it seems that it's trying to decode the str() representation of a dict, rather than the JSON representation, so I'm guessing there is some issue with serializing dictionaries into the JSONField where only str(), not json.dumps(), is being called.

I am getting the following error when trying to use shell_plus --notebook:

[C 04:28:24.002 NotebookApp] Bad config encountered during initialization: [C 04:28:24.003 NotebookApp] Unrecognized flag: '--ext'

This is my pip environment: backports.ssl-match-hostname==3.4.0.2 certifi==14.5.14 Django==1.7.4 django-account==0.1.14 django-appconf==1.0.1 django-bootstrap-form==3.1 django-debug-toolbar==1.2.2 django-extensions==1.5.0 django-jsonfield==0.9.13 django-registration==1.0 django-suit==0.2.12 django-urlauth==0.1.8 django-user-accounts==1.0.1 djangorestframework==3.0.5 docutils==0.12 eventlog==0.10.0 gnureadline==6.3.3 ipython==3.0.0 Jinja2==2.7.3 jsonschema==2.4.0 MarkupSafe==0.23 metron==1.3.5 mistune==0.5 MySQL-python==1.2.5 nose==1.3.4 numpydoc==0.5 pinax-theme-bootstrap==5.7.1 psycopg2==2.6 ptyprocess==0.4 Pygments==2.0.2 pytz==2014.10 PyYAML==3.11 pyzmq==14.5.0 requests==2.5.3 sh==1.11 simplejson==3.6.5 six==1.9.0 Sphinx==1.2.3 sqlparse==0.1.14 terminado==0.5 tornado==4.1

I find the output of show_urls hard to read, so I wrote a simple script to format the output (screenshot).

It would be nice if this feature were integrated. show_urls could have an option to put the output in columns.

The mixin so far test for the right user against the first entry of Model.objects.all(). This entry has, most of the time, nothing to do with the actual entry (to edit/update/delete). Now the mixin tests the actual user against the user of the actual model instance given by pk or slug. Fix tests accordingly. Until now, the tests for the mixin confirm the produced results (anonymous user) and test not the real expectation (second user can't get data of the first user).

When using the update_feilds kwarg this skips updating the modified field as well. update fields Django Docs

Something like this could be added to the save() of TimeStampedModel

update_fields = kwargs.pop('update_fields', None)
        if update_fields and 'modified' not in update_fields:
            update_fields += ['modified']

When running test_pipchecker_with_outdated_requirement_on_pip20_1 in development, it modifies the environment by installing pip 20.1 without restoring the environment after the test.

Discovered this issue when working on #1778. The first run it fails, the second run its working again since pip 20.1 does not have that particular issue.

When running the tests with Python 3.11 and pip 22.1 or greater an AttributeError is thrown as shown below. It has something to do with https://pip.pypa.io/en/stable/news/#id64

AttributeError: 'PathDistribution' object has no attribute 'project_name'

/PycharmProjects/django-extensions/venv4/lib/python3.11/site-packages/_distutils_hack/__init__.py:33: UserWarning: Setuptools is replacing distutils.
  warnings.warn("Setuptools is replacing distutils.")
Traceback (most recent call last):
  File "/PycharmProjects/django-extensions/manage.py", line 13, in <module>
    execute_from_command_line(sys.argv)
  File "/PycharmProjects/django-extensions/venv4/lib/python3.11/site-packages/django/core/management/__init__.py", line 446, in execute_from_command_line
    utility.execute()
  File "/PycharmProjects/django-extensions/venv4/lib/python3.11/site-packages/django/core/management/__init__.py", line 440, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/PycharmProjects/django-extensions/venv4/lib/python3.11/site-packages/django/core/management/base.py", line 402, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/PycharmProjects/django-extensions/venv4/lib/python3.11/site-packages/django/core/management/base.py", line 448, in execute
    output = self.handle(*args, **options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/PycharmProjects/django-extensions/django_extensions/management/utils.py", line 62, in inner
    ret = func(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/PycharmProjects/django-extensions/django_extensions/management/commands/pipchecker.py", line 141, in handle
    self.check_pypi()
  File "/PycharmProjects/django-extensions/django_extensions/management/commands/pipchecker.py", line 167, in check_pypi
    name = dist.project_name
           ^^^^^^^^^^^^^^^^^
AttributeError: 'PathDistribution' object has no attribute 'project_name'

Since the version of flake8 is not pinned, the Github actions use a different version of flake8 then pre-commit. This gives inconsistent outcomes between the linter and pre-commit action.