I am getting 404 on using this url defined in urls.py. Please help
url(r'^/(?P<username>[0-9a-zA-Z_-]+)/posts/$', UserPostList.as_view(), name='userpost-list'),
In Django tutorial https://docs.djangoproject.com/en/1.9/intro/tutorial03/#writing-more-views when we write more views, there is a %s simbol. What does it mean?
def detail(request, question_id):
return HttpResponse("You're looking at question %s." % question_id)
...
Obviously, this is a variable, that takes its respective question_id and puts to %s in a return. But wtf why %s exactly?
@puneetagg According to the Django URL dispatcher documentation there shouldn't be a slash at the beginning of an URL pattern. You should even get a warning when you do a
manage.py check or manage.py runserver IIRC. Maybe that's the problem? -- Otherwise please state what's the exact URL your trying to access (that produces 404). You could also set DEBUG=True in your settings and inspect the debug output; it will tell you which patterns Django tried; maybe your urls.py are not included.
@legobillyjoe This is basic Python. It's the placeholder within strings. The value in the variable after the string and
% sign is replaced by it. -- See here for documentation: https://docs.python.org/2/library/stdtypes.html#string-formatting
http://stackoverflow.com/questions/997797/what-does-s-mean-in-python Found it a minute ago. )
@bittner Thanks a lot for the reply. I have tried without slash in the beginning as well. Actually I am trying to create URLs similar to FB and Twitter for usernames (example.com/username).
@puneetagg I'm afraid if
DEBUG=True doesn't help you ("Is my urls.py parsed?"), without full source code disclosed there's no-one that can help you with your issue. The regex seems right, and what you're trying to achieve is usually straight-forward with Django.
Also, let me remind you that you still have not disclosed yet what the exact URL is that you use to produce the 404 on the URL pattern you mention.
My suspect: The webserver will usually add a trailing slash, the
runserver won't. Try adding a trailing slash to the URL.