App not Defined - Getting Started

[Jaime Escobar]

Hi,

I am a completely beginner in django and also python programming. I am trying to follow the online documentation tutorial in which a poll website is created, but just running the server after created the polls it throws the error "name 'polls' is not defined".

Can you help me?

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7feeeb74ab70>
Traceback (most recent call last):
  File "/home/jaime/.local/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces
    url_patterns = getattr(resolver, 'url_patterns', [])
  File "/home/jaime/.local/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/urls/resolvers.py", line 540, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/home/jaime/.local/lib/python3.6/site-packages/django/urls/resolvers.py", line 533, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/jaime/Projects/Django/mysite/mysite/urls.py", line 20, in <module>
    path('polls/',include(polls.urls)),
NameError: name 'polls' is not defined

[Priya]

Hi Jamie,

I think you should put single quotes inside include() which expects a path for your apps(polls) urls.py. So try-

path('polls/',include('polls.urls'))

Hope this helps.

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[Sadialiou Diallo]

you must replace the

path('polls/',include(polls.

urls)),

by

path('polls/',include("polls.

urls")),

because the polls is not a variable,it is a name of application

[Satyam Soni]

Did u registered you app in settings.py file ? This happens when you forget to put name of your app in installed apps in settings.py file. 

Sent from my iPhone