Error in Running Server using python with django framework - django

Question

I'm a beginner in programming and my first project is creating a website using python with django framework as the back-end.However on trying to run the server. I was getting the following error. So can someone please explain?
(myvenv) C:\Users\Rohan Jain\venvi>python manage.py runserver
Performing system checks...
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001FACC183378>
Traceback (most recent call last):
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\commands\runserver.py", line 125, in inner_run
self.check(display_num_errors=True)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\base.py", line 359, in check
include_deployment_checks=include_deployment_checks,
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site- packages\django\core\management\base.py", line 346, in _run_checks
return checks.run_checks(**kwargs)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\checks\registry.py", line 81, in run_checks
new_errors = check(app_configs=app_configs)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\checks\urls.py", line 16, in check_url_config
return check_resolver(resolver)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\checks\urls.py", line 26, in check_resolver
return check_method()
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\urls\resolvers.py", line 254, in check
for pattern in self.url_patterns:
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\utils\functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\urls\resolvers.py", line 405, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\utils\functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\site-packages\django\urls\resolvers.py", line 398, in urlconf_module
return import_module(self.urlconf_name)
File "C:\Users\Rohan Jain\AppData\Local\Programs\Python\Python36\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 978, in _gcd_import
File "<frozen importlib._bootstrap>", line 961, in _find_and_load
File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
File "C:\Users\Rohan Jain\venvi\mysite\urls.py", line 21, in <module>
url(r'', include('blog.urls')),
NameError: name 'include' is not defined

Answer 1

from django.conf.urls import include, url
^^^^^^^
urlpatterns = [
# ... snip ...
url(r'^community/', include('django_website.aggregator.urls')),
url(r'^contact/', include('django_website.contact.urls')),
# ... snip ...
]
So, for the little explanation:
When you try to run your program, the problem is that the word "include" is not defined anywhere. To solve this situation, you need to define that word and since this is a function from django.conf.urls is as simple as import it at the beginning from your file.
Hope it helps, here is a bit of docs that may help you understand a bit more about django
https://docs.djangoproject.com/en/1.11/topics/http/urls/