One of the users on my site recently managed to trigger this traceback while

Question

0

Asked: June 3, 20262026-06-03T21:06:35+00:00 2026-06-03T21:06:35+00:00

One of the users on my site recently managed to trigger this traceback while

0

One of the users on my site recently managed to trigger this traceback while attempting to login. In Django Admin, his password reads Invalid password format or unknown hashing algorithm.

I have no idea what might have caused this. So far this has been an isolated case and I and other users have managed to successfully sign up and login to the site.

Traceback

Traceback (most recent call last):

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
   response = callback(request, *callback_args, **callback_kwargs)

 File "/var/git/bbox/userprofile/views.py", line 67, in login_view
   if form.is_valid():

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/forms/forms.py", line 124, in is_valid
   return self.is_bound and not bool(self.errors)

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/forms/forms.py", line 115, in _get_errors
   self.full_clean()

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/forms/forms.py", line 271, in full_clean
   self._clean_form()

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/forms/forms.py", line 299, in _clean_form
   self.cleaned_data = self.clean()

 File "/var/git/bbox/userprofile/forms.py", line 83, in clean
   self.user_cache = authenticate(username=username, password=password)

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/contrib/auth/__init__.py", line 45, in authenticate
   user = backend.authenticate(**credentials)

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/contrib/auth/backends.py", line 15, in authenticate
   if user.check_password(password):

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/contrib/auth/models.py", line 304, in check_password
   return check_password(raw_password, self.password, setter)

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/contrib/auth/hashers.py", line 42, in check_password
   hasher = get_hasher(algorithm)

 File "/home/gituser/.virtualenvs/bbox/lib/python2.7/site-packages/django/contrib/auth/hashers.py", line 115, in get_hasher
   "setting?" % algorithm)

ValueError: Unknown password hashing algorithm ''. Did you specify it in the PASSWORD_HASHERS setting?