I'm using DRF and Pycharm 3.4.1 and Django 1.7. When I try to test my serializer class via Pycharm django console, it gives me the following error:

Code

from items_app.serializers import ItemSerializer
s = ItemSerializer()
print(repr(s))

then cause the following error traceback:

Traceback

Traceback (most recent call last):File "<input>", line 1, in <module>File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py", line 440, in __repr__return unicode_to_repr(representation.serializer_repr(self, indent=1))File "/usr/local/lib/python2.7/dist-packages/rest_framework/utils/representation.py", line 75, in serializer_reprfields = serializer.fieldsFile "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py", line 312, in fieldsfor key, value in self.get_fields().items():File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py", line 883, in get_fieldsinfo = model_meta.get_field_info(model)File "/usr/local/lib/python2.7/dist-packages/rest_framework/utils/model_meta.py", line 68, in get_field_inforeverse_relations = _get_reverse_relationships(opts)File "/usr/local/lib/python2.7/dist-packages/rest_framework/utils/model_meta.py", line 129, in _get_reverse_relationshipsfor relation in opts.get_all_related_objects():File "/usr/local/lib/python2.7/dist-packages/django/db/models/options.py", line 498, in get_all_related_objectsinclude_proxy_eq=include_proxy_eq)]File "/usr/local/lib/python2.7/dist-packages/django/db/models/options.py", line 510, in get_all_related_objects_with_modelself._fill_related_objects_cache()File "/usr/local/lib/python2.7/dist-packages/django/db/models/options.py", line 533, in _fill_related_objects_cachefor klass in self.apps.get_models(include_auto_created=True):File "/usr/local/lib/python2.7/dist-packages/django/utils/lru_cache.py", line 101, in wrapperresult = user_function(*args, **kwds)File "/usr/local/lib/python2.7/dist-packages/django/apps/registry.py", line 168, in get_modelsself.check_models_ready()File "/usr/local/lib/python2.7/dist-packages/django/apps/registry.py", line 131, in check_models_readyraise AppRegistryNotReady("Models aren't loaded yet.")
AppRegistryNotReady: Models aren't loaded yet.

but when I'm using my terminal(instead of pycharm django console), It works properly! I know there is a problem with Pycharm but I don't know how to fix it!

Loading the app registry is part of the django.setup method. If the app registry is not loaded when you start using the console, the most likely reason is that it is a plain python console instead of a fully blown Django console.

Try the following code. If that solves it, you are indeed using a plain python console.

>>> import django
>>> django.setup()