code: def login(request, template="accounts/account_login.html",
            form_class=LoginForm, extra_context=None):
      
      form = form_class(request.POST or None)
      if request.method == "POST" and form.is_valid():
          authenticated_user = form.save()
          info(request, _("Successfully logged in"))
          auth_login(request, authenticated_user)
          return login_redirect(request)
      context = {"form": form, "title": _("Log in")}
      context.update(extra_context or {})
      return TemplateResponse(request, template, context)
docs: Login form.