Python (Django) - Authenticate returning None

Question

I'm using Django's authenticate function to let users register (create an account) and sign in (login after creating an account). Authenticate works fine for registration, but when I try signing the user in after logging out, it doesn't work.

Registration Method:

if request.method == 'POST':
     form = SignUpForm(request.POST)
          if form.is_valid():
               form.save()
               username = form.cleaned_data['username']
               raw_password = form.cleaned_data['password1']
               user = authenticate(username=username, password=raw_password) #returns user object
               login(request, user) #works

Sign in Method:

if request.method == 'POST':
     form = AuthenticationForm(request=request, data=request.POST)
          if form.is_valid():
               username = form.cleaned_data['username']
               password = form.cleaned_data['password']
               user = authenticate(user=username, password=password) #returns None              
               login(request, user) #doesn't work

I looked at a few other threads that reported a similar issue and added the following code to my settings.py file. However, authenticate still returns none when I try signing in.

settings.py code

AUTHENTICATION_BACKENDS = (
        'django.contrib.auth.backends.ModelBackend',
    )

akazuko · Accepted Answer · 2020-03-27 01:15:52Z

2

As per Django documentation for authenticate method, the valid keyword arguments are username and password. Thus, I would recommend changing the following in "Sign In" method:

user = authenticate(user=username, password=password)

to

user = authenticate(request=request, username=username, password=password)

answered Mar 27, 2020 at 1:15

akazuko

1,38411 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Python (Django) - Authenticate returning None

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related