パスワードをリセットできないのはなぜですか？

@csrf_protect def password_reset(request, is_admin_site=False, template_name='registration/password_reset_form.html', email_template_name='registration/password_reset_email.html', subject_template_name='registration/password_reset_subject.txt', password_reset_form=PasswordResetForm, token_generator=default_token_generator, post_reset_redirect=None, from_email=None, current_app=None, extra_context=None): if post_reset_redirect is None: post_reset_redirect = reverse('password_reset_done') else: post_reset_redirect = resolve_url(post_reset_redirect) if request.method == "POST": form = password_reset_form(request.POST) if form.is_valid(): opts = { 'use_https': request.is_secure(), 'token_generator': token_generator, 'from_email': from_email, 'email_template_name': email_template_name, 'subject_template_name': subject_template_name, 'request': request, } if is_admin_site: opts = dict(opts, domain_override=request.get_host()) form.save(**opts) return HttpResponseRedirect(post_reset_redirect) else: form = password_reset_form() context = { 'form': form, } if extra_context is not None: context.update(extra_context) return TemplateResponse(request, template_name, context, current_app=current_app) 

 def save(self, domain_override=None, subject_template_name='registration/password_reset_subject.txt', email_template_name='registration/password_reset_email.html', use_https=False, token_generator=default_token_generator, from_email=None, request=None): """ Generates a one-use only link for resetting password and sends to the user. """ from django.core.mail import send_mail UserModel = get_user_model() email = self.cleaned_data["email"] active_users = UserModel._default_manager.filter( email__iexact=email, is_active=True) for user in active_users: # Make sure that no email is sent to a user that actually has # a password marked as unusable if not user.has_usable_password(): continue if not domain_override: current_site = get_current_site(request) site_name = current_site.name domain = current_site.domain else: site_name = domain = domain_override c = { 'email': user.email, 'domain': domain, 'site_name': site_name, 'uid': urlsafe_base64_encode(force_bytes(user.pk)), 'user': user, 'token': token_generator.make_token(user), 'protocol': 'https' if use_https else 'http', } subject = loader.render_to_string(subject_template_name, c) # Email subject *must not* contain newlines subject = ''.join(subject.splitlines()) email = loader.render_to_string(email_template_name, c) send_mail(subject, email, from_email, [user.email])