Change Password Django - django

Question

I have the following functions to change a password and display the users profile, but upon submitting the form instead of being redirected to the 'profile/' page I get an error saying The view core.views.change_password didn't return an HttpResponse object. It returned None instead., why is this?
from django.contrib.auth.forms import UserChangeForm, PasswordChangeForm
from django.contrib.auth import update_session_auth_hash
def change_password(request):
if request.method == "POST":
form = PasswordChangeForm(data= request.POST, user = request.user)
if form.is_valid():
form.save()
update_session_auth_hash(request, form.user) #this function keeps the user logged in afte they change their password
# request.user could not have been passed in because that would pass in 'AnonymousUser', however
#form.user gets the user who was filling in the form and passes it to the function
return redirect('/profile')
else:
form = PasswordChangeForm(user = request.user)
args = {'form': form} # gives access to the form in the template
return render(request, 'core/change_password.html', args)
def view_profile(request):
args = {'user': request.user} #
return render(request, 'core/profile.html', args)
Note: The profile page does work on other parts of the site, for example after logging in the user is redirected to their profile page with no issue.

Answer 1

You should move the last two lines out of the else block. This way, you will return a response for POST requests when the form is not valid.
def change_password(request):
if request.method == "POST":
form = PasswordChangeForm(data= request.POST, user = request.user)
if form.is_valid():
...
return redirect('/profile')
else:
form = PasswordChangeForm(user = request.user)
args = {'form': form} # gives access to the form in the template
return render(request, 'core/change_password.html', args)