TypeError at /confirmemail/amlqctnhel/confirmemail() takes exactly 2 arguments (1 given), why?

问题

Error:

TypeError at /confirmemail/amlqctnhel/

confirmemail() takes exactly 2 arguments (1 given)

Request Method:     GET
Request URL:    http://127.0.0.1:8000/confirmemail/amlqctnhel/
Django Version:     1.3.1
Exception Type:     TypeError
Exception Value:    

confirmemail() takes exactly 2 arguments (1 given)

Exception Location:     /usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py in get_response, line 111
Python Executable:  /usr/bin/python
Python Version:     2.6.6
Python Path:    

['/home/user1/djangoblog',
 '/usr/lib/python2.6',
 '/usr/lib/python2.6/plat-linux2',
 '/usr/lib/python2.6/lib-tk',
 '/usr/lib/python2.6/lib-old',
 '/usr/lib/python2.6/lib-dynload',
 '/usr/local/lib/python2.6/dist-packages',
 '/usr/lib/python2.6/dist-packages',
 '/usr/lib/python2.6/dist-packages/gst-0.10',
 '/usr/lib/pymodules/python2.6',
 '/usr/lib/pymodules/python2.6/gtk-2.0']

urls.py:

url(r'^confirmemail/[a-zA-Z0-9]{10}/$', 'blog.views.confirmemail'),

views.py:

def confirmemail(request,token):

user = Users.objects.get(email_token = token)
return render_to_response('confirmemail.html', {'user': user}, context_instance=RequestContext(request))

It will be highly appreciated if someone can help me to fix it. Thank You.

回答1:

In a URLconf, you need to use capturing groups in your regex to achieve positional or keyword arguments in your view. If you use a named capture group, then keyword arguments are used; otherwise, positional arguments are used.

Here is what your url() line should look like:

url(r'^confirmemail/([a-zA-Z0-9]{10})/$', 'blog.views.confirmemail'),
# or
url(r'^confirmemail/(?P<token>[a-zA-Z0-9]{10})/$', 'blog.views.confirmemail'),

The first form uses a positional argument (and positional arguments are ordered by the capture groups in the URL). The second form uses a keyword argument, in this case token. The second form is more characters but will also be safe against parameter reordering.

回答2:

You arent capturing a pattern in your url so its not passing a value for your token parameter

url(r'^confirmemail/([a-zA-Z0-9]{10})/$', 'blog.views.confirmemail'),

Note i have wrapped your pattern in a capture group

来源：https://stackoverflow.com/questions/8929216/typeerror-at-confirmemail-amlqctnhel-confirmemail-takes-exactly-2-arguments

标签

python

django

django-views

django-urls