"Models aren't loaded yet" error while populating in Django 1.8 or later
36,723
Solution 1
I had the same exception with Django 1.7rc2. The solution was to add these lines at the beginning of my program:
import django
django.setup()
Update: This is now documented for Django 1.8.
Solution 2
We were getting this error. Our project started with Django 1.4, we went to 1.5 and then to 1.7. Our wsgi.py looked like this:
import os
import sys
from django.core.handlers.wsgi import WSGIHandler
os.environ['DJANGO_SETTINGS_MODULE'] = 'myapp.settings'
application = WSGIHandler()
When I updated to the 1.7 style WSGI handler:
import os
import sys
from django.core.wsgi import get_wsgi_application
os.environ['DJANGO_SETTINGS_MODULE'] = 'myapp.settings'
application = get_wsgi_application()
Everything works now.
Solution 3
well for django 1.9.x :
populate_rango.py:
import os
import sys
from django.core.wsgi import get_wsgi_application
os.environ['DJANGO_SETTINGS_MODULE'] = 'tango_with_django_project.settings'
application = get_wsgi_application()
def populate():
python_cat = add_cat('Python')
add_page(cat=python_cat,
title="Official Python Tutorial",
url="http://docs.python.org/2/tutorial/")
add_page(cat=python_cat,
title="How to Think like a Computer Scientist",
url="http://www.greenteapress.com/thinkpython/")
add_page(cat=python_cat,
title="Learn Python in 10 Minutes",
url="http://www.korokithakis.net/tutorials/python/")
django_cat = add_cat("Django")
add_page(cat=django_cat,
title="Official Django Tutorial",
url="https://docs.djangoproject.com/en/1.5/intro/tutorial01/")
add_page(cat=django_cat,
title="Django Rocks",
url="http://www.djangorocks.com/")
add_page(cat=django_cat,
title="How to Tango with Django",
url="http://www.tangowithdjango.com/")
frame_cat = add_cat("Other Frameworks")
add_page(cat=frame_cat,
title="Bottle",
url="http://bottlepy.org/docs/dev/")
add_page(cat=frame_cat,
title="Flask",
url="http://flask.pocoo.org")
#Print out what we have added to the user.
for c in Category.objects.all():
for p in Page.objects.filter(category=c):
print ("- {0} - {1}".format(str(c), str(p)))
def add_page(cat, title, url, views=0):
p = Page.objects.get_or_create(category=cat, title=title, url=url, views=views)[0]
return p
def add_cat(name):
c = Category.objects.get_or_create(name=name)[0]
return c
# Start execution here!
if __name__ == '__main__':
print ("Starting Rango population script...")
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django_project.settings')
from rango.models import Category, Page
populate()
Author by
Atul tyagi
Updated on January 10, 2020Comments
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Atul tyagi over 4 years
I am using this code to populate my database:
import os def populate(): python_cat = add_cat('Python') add_page(cat=python_cat, title="Official Python Tutorial", url="http://docs.python.org/2/tutorial/") add_page(cat=python_cat, title="How to Think like a Computer Scientist", url="http://www.greenteapress.com/thinkpython/") add_page(cat=python_cat, title="Learn Python in 10 minutes", url="http://www.korokithakis.net/tutorials/python/") django_cat = add_cat(name="Django") add_page(cat=django_cat, title="Official Django Tutorial", url="http://djangoproject.com/en/1.5/intro/tutorial01/") add_page(cat=django_cat, title="Django Rocks", url="http://www.djangorocks.com/") add_page(cat=django_cat, title="How to Tango with Django", url="htttp://www.tangowithdjango.com/") frame_cat = add_cat(name="Other Frameworks") add_page(cat=frame_cat, title="Bottle", url="http://bottlepy.org/docs/dev/") add_page(cat=frame_cat, title="Flask", url="http://flask.pocoo.org") # Print out what we have added to the user. for c in Category.objects.all(): for p in Page.objects.filter(category=c): print "- {0} - {1}".format(str(c), str(p)) def add_page(cat, title, url, views=0): p = Page.objects.get_or_create(category=cat, title=title, url=url, views=views)[0] return p def add_cat(name): c = Category.objects.get_or_create(name=name) return c if __name__ == '__main__': print "Starting Rango population script..." os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'p.settings') from rango.models import Category, Page populate()
On running
python c:\python27\p\populate_rango.py
It gives the error:
Staring Rango population script... Traceback (most recent call last): File "c:\python27\p\populate_rango.py", line 59, in <module> populate() File "c:\python27\p\populate_rango.py", line 4, in populate python_cat = add_cat('Python') File "c:\python27\p\populate_rango.py", line 52, in add_cat c = Category.objects.get_or_create(name=name) File "C:\Python27\Lib\site-packages\django\db\models\manager.py", li manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Python27\Lib\site-packages\django\db\models\query.py", line et_or_create return self.get(**lookup), False File "C:\Python27\Lib\site-packages\django\db\models\query.py", line clone = self.filter(*args, **kwargs) File "C:\Python27\Lib\site-packages\django\db\models\query.py", line ilter return self._filter_or_exclude(False, *args, **kwargs) File "C:\Python27\Lib\site-packages\django\db\models\query.py", line filter_or_exclude clone.query.add_q(Q(*args, **kwargs)) File "C:\Python27\Lib\site-packages\django\db\models\sql\query.py", in add_q clause, require_inner = self._add_q(where_part, self.used_aliases) File "C:\Python27\Lib\site-packages\django\db\models\sql\query.py", in _add_q current_negated=current_negated, connector=connector) File "C:\Python27\Lib\site-packages\django\db\models\sql\query.py", in build_filter lookups, parts, reffed_aggregate = self.solve_lookup_type(arg) File "C:\Python27\Lib\site-packages\django\db\models\sql\query.py", in solve_lookup_type _, field, _, lookup_parts = self.names_to_path(lookup_splitted, se a()) File "C:\Python27\Lib\site-packages\django\db\models\sql\query.py", in names_to_path field, model, direct, m2m = opts.get_field_by_name(name) File "C:\Python27\Lib\site-packages\django\db\models\options.py", li get_field_by_name cache = self.init_name_map() File "C:\Python27\Lib\site-packages\django\db\models\options.py", li init_name_map for f, model in self.get_all_related_m2m_objects_with_model(): File "C:\Python27\Lib\site-packages\django\db\models\options.py", li get_all_related_m2m_objects_with_model cache = self._fill_related_many_to_many_cache() File "C:\Python27\Lib\site-packages\django\db\models\options.py", li _fill_related_many_to_many_cache for klass in self.apps.get_models(): File "C:\Python27\Lib\site-packages\django\utils\lru_cache.py", line rapper result = user_function(*args, **kwds) File "C:\Python27\Lib\site-packages\django\apps\registry.py", line 1 _models *self.check_models_ready() File "C:\Python27\Lib\site-packages\django\apps\registry.py", line 1 ck_models_ready raise AppRegistryNotReady("Models aren't loaded yet.") django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.*
Rest of my files are ok but getting this error. I am following the tutorial from Tango with Django book but as the book refers to Django 1.5.4 and i am using Django 1.8, so can anyone help me here?
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zeroos almost 10 yearsAnd if you're getting this error after executing
python manage.py
from Django, try this: stackoverflow.com/q/25537905/540717 -
Raja Simon about 9 yearseven though another model already worked in that package but later i import another model suddenly happened with loaded yet. Your answer solved .. thanks ..
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B98 almost 9 yearsVery useful with
unittest
and a run.py script, too! (Possibly after setting PYTHONPATH.) -
GobSmack almost 9 yearsAdd it after the environment variable for DJANGO_SETTINGS_MODULE is set. Else it will generate improperly configured errors.
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Sarah Messer almost 9 yearsDjango documentation for setup() at docs.djangoproject.com/en/1.8/topics/settings/…
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A.J. almost 8 yearsworked for me when I upgraded to django 1.8. Thanks +1