dispatch() takes exactly 3 arguments (2 given)

[kevthehermit]

Currently all the docs use

urlpatterns = patterns('',
    url(r'^(?P<path>.*)$', TestProxyView.as_view()),
)

Tested working ok with this style of urlpatterns BUT as of Django 1.10 (currently 1.9.7) this will be removed.

RemovedInDjango110Warning: django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead.
  url(r'^(?P<path>.*)$', TestProxyView.as_view()),

Trying the new stlye of url from django docs

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^$', TestProxyView.as_view()),
    url(r'createsession/', TestProxyView.as_view(), name='session'),

Gives the following error

Environment:


Request Method: GET
Request URL: http://192.168.1.105:8000/createsession/

Django Version: 1.9.7
Python Version: 2.7.11
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'revproxy',
 'Portal']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

Exception Type: TypeError at /createsession/
Exception Value: dispatch() takes exactly 3 arguments (2 given)

[dfeinzeig]

Also busted in 1.8.

[dimrozakis]

@kevthehermit I think the error dispatch() takes exactly 3 arguments (2 given) is raised because there is no path matched in the url regex, and therefore path isn't sent to the view, which expects it as a required argument (to know to which path it should proxy to). You should have a part like this in the url regex: (?P<path>.*)

[seocam]

@kevthehermit did you manage to get it working. @mccalluc I see you referenced this issue as well. Do you see a problem here? Perhaps we should improve docs or error msgs somehow?

[mccalluc]

I don't remember the details, but it looks like my first try had used a path kwarg, when url was what I needed. I was fairly new to django at the time, so perhaps with more familiarity it would have been less confusing for me? Your call.