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Invalid password format or unknown hash algorithm

One of the users of my site recently managed to run this trace when trying to log in. In Django Admin, his password is readInvalid password format or unknown hashing algorithm.

I do not know what could cause this. Until now, this was an isolated case, and I and other users were able to successfully register and go 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?
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2 answers

Instead of specifying a password on an empty line, set the password as unusable using the model method : set_unusable_password()User

user.set_unusable_password()

Read more in the documentation: https://docs.djangoproject.com/en/dev/topics/auth/#django.contrib.auth.models.User.set_unusable_password

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, . :

    user = User.objects.create(
            username=cd['email'],
            email=cd['email'],
            first_name=cd['first_name'],
            last_name=cd['last_name'],
            is_active=False)

, . , , , , .

    # set a random pw. user will be prompted to change
    # on log in
    user.set_unusable_password()
    user.save()

, , , , ( django auth).

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