django_views.py

def user_login(request):
    template_name = 'accounts/login.html'
    if request.method == 'POST':
        form = UserLogin(request.POST)
        if form.is_valid():
            username = form.cleaned_data['username']
            password = form.cleaned_data['password']
            user = authenticate(request, username=username, password=password)
            if user is not None:
                login(request, user)
                messages.success(request, commons.LOGIN_SUCCESS)
                return redirect('core:home_view')
            else:
                messages.error(request, commons.LOGIN_ERROR)
                return redirect('accounts:user_login')
    user_form = UserForm()
    user_login = UserLogin()
    context = {
        'user_form': user_form,
        'user_login': user_login,
    }
    return render(request, template_name, context)