How to use django model outside of django framework?

Django (web framework): ImportError: cannot import name MPTTModel

• I did the steps at the tutorial " http://django-mptt.github.com/django-mptt/tutorial.html " but it still give me the import error , I double check the code for the mptt and found the class MPTTMODEL exist in the mptt>model file     Validating models...         Unhandled exception in thread started by <bound method Command.inner_run of <django.contrib.staticfiles.management.commands.runserver.Command object at 0x1ec4710>>     Traceback (most recent call last):       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/core/management/commands/http://runserver.py", line 91, in inner_run         self.validate(display_num_errors=True)       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/core/management/http://base.py", line 266, in validate         num_errors = get_validation_errors(s, app)       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/core/management/http://validation.py", line 30, in get_validation_errors         for (app_name, error) in get_app_errors().items():       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/db/models/http://loading.py", line 158, in get_app_errors         self._populate()       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/db/models/http://loading.py", line 67, in _populate         self.load_app(app_name)       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/db/models/http://loading.py", line 88, in load_app         models = import_module('.models', app_name)       File "/usr/local/lib/python2.7/dist-packages/Django-1.4-py2.7.egg/django/utils/http://importlib.py", line 35, in import_module         __import__(name)       File "/home/kareemhashem/espace/sharek/core/http://models.py", line 12, in <module>         from mptt.models import MPTTModel, TreeForeignKey     ImportError: cannot import name MPTTModel

• Answer:

  Add mptt to INSTALLED_APPS in settings file.