Django problems

[XisterONE]

def login_view(request):
    next = request.GET.get('next')
    title = 'Вхід'
    form = UserLoginForms(request.POST or None)
    if form.is_valid():
        username = form.changed_data.get('username')
        password = form.changed_data.get('password')
        user = authenticate(username=username, password=password)
        login(request, user)
        if next:
            return redirect(next)
        return redirect('/')

    return render(request, "form.html", {"form": form, "title": title})


def register_view(request):
    next = request.GET.get('next')
    title = 'Регістрація'
    form = UserRegisterForm(request.POST or None)
    if form.is_valid():
        user = form.save(commit=False)
        password = form.cleaned_data.get('password')
        user.set_password()
        user.save()
        new_user = authenticate(username=user.username, password=password)
        login(request, new_user)
        if next:
            return redirect(next)
        return redirect('/')

    context = {
        'form': form,
        'title': title,
    }
    return render(request, "form.html", context)

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