/ password-reset /时的IndexError：重置密码时字符串索引超出范围

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我正在尝试使用django基于类的视图创建密码重置功能。我已经在django中实现了所有推荐的东西但是有些东西不合适。每当我尝试点击发送密码重置电子邮件链接按钮。它会抛出一个字符串索引超出范围错误。

这是我的urls.py

urlpatterns = [
    path('admin/', admin.site.urls),
    path('register/',User_views.register, name='register'),
    path('profile/',User_views.profile, name='profile'),
    path('login/' , auth_views.LoginView.as_view(template_name='Users/login.html'), name='login'),
    path('logout/', auth_views.LogoutView.as_view(), name='logout'),
    path('password-reset/',
         auth_views.PasswordResetView.as_view(
             template_name='users/password_reset.html'
         ),
         name='password_reset'),
    path('password-reset/done/',
         auth_views.PasswordResetDoneView.as_view(
             template_name='users/password_reset_done.html'
         ),
         name='password_reset_done'),
    path('password-reset-confirm/<uidb64>/<token>/',
         auth_views.PasswordResetConfirmView.as_view(
             template_name='users/password_reset_confirm.html'
         ),
         name='password_reset_confirm'),
    path('password-reset-complete/',
         auth_views.PasswordResetCompleteView.as_view(
             template_name='users/password_reset_complete.html'
         ),
         name='password_reset_complete'),

    path('', include ('blog.urls')),

]
if settings.DEBUG:
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

这是我的项目的settings.py文件 - 

INSTALLED_APPS = [
    'blog.apps.BlogConfig',
    'users.apps.UsersConfig',
    'crispy_forms',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'django_project.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'django_project.wsgi.application'


# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, javascript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/

STATIC_URL = '/static/'

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'

CRISPY_TEMPLATE_PACK ='bootstrap4'

LOGIN_REDIRECT_URL = 'blog-home'
LOGIN_URL = 'Login'

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_USE_SSL = True
EMAIL_HOST_USER = os.environ.get('EMAIL_USER')
EMAIL_HOST_PASSWORD = os.environ.get('EMAIL_PASSWORD')
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER

这是我的密码 - reset.html - 

{% extends "blog/base.html" %}
{% load crispy_forms_tags %}
{% block content %}
    <div class="content-section">
        <form method="POST">
            {% csrf_token %}
            <fieldset class="form-group">
                <legend class="border-bottom mb-4">Reset Password</legend>
                {{ form|crispy }}
            </fieldset>
            <div class="form-group">
                <button class="btn btn-outline-info" type="submit">Request Password Reset</button>
            </div>
        </form>
    </div>
{% endblock content %}

这是错误追溯 - 

> Internal Server Error: /password-reset/ Traceback (most recent call
> last):   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersexception.py",
> line 34, in inner
>     response = get_response(request)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersase.py",
> line 126, in _get_response
>     response = self.process_exception_by_middleware(e, request)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersase.py",
> line 124, in _get_response
>     response = wrapped_callback(request, *callback_args, **callback_kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericase.py",
> line 68, in view
>     return self.dispatch(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoutilsdecorators.py",
> line 45, in _wrapper
>     return bound_method(*args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoutilsdecorators.py",
> line 142, in _wrapped_view
>     response = view_func(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthviews.py",
> line 220, in dispatch
>     return super().dispatch(*args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericase.py",
> line 88, in dispatch
>     return handler(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericedit.py",
> line 142, in post
>     return self.form_valid(form)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthviews.py",
> line 233, in form_valid
>     form.save(**opts)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthforms.py",
> line 295, in save
>     email, html_email_template_name=html_email_template_name,   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthforms.py",
> line 250, in send_mail
>     email_message.send()   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailmessage.py",
> line 291, in send
>     return self.get_connection(fail_silently).send_messages([self])   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailackendssmtp.py",
> line 110, in send_messages
>     sent = self._send(message)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailackendssmtp.py",
> line 122, in _send
>     from_email = sanitize_address(email_message.from_email, encoding)   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailmessage.py",
> line 119, in sanitize_address
>     address = Address(nm, addr_spec=addr)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemailheaderregistry.py",
> line 42, in __init__
>     a_s, rest = parser.get_addr_spec(addr_spec)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemail\_header_value_parser.py",
> line 1582, in get_addr_spec
>     token, value = get_local_part(value)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemail\_header_value_parser.py",
> line 1394, in get_local_part
>     if value[0] in CFWS_LEADER: IndexError: string index out of range [24/Apr/2019 13:51:36] "POST /password-reset/ HTTP/1.1" 500 135700
> [24/Apr/2019 14:01:39] "GET /profile/ HTTP/1.1" 200 5203 [24/Apr/2019
> 14:01:52] "GET /password-reset/ HTTP/1.1" 200 4035 Internal Server
> Error: /password-reset/ Traceback (most recent call last):   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersexception.py",
> line 34, in inner
>     response = get_response(request)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersase.py",
> line 126, in _get_response
>     response = self.process_exception_by_middleware(e, request)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocorehandlersase.py",
> line 124, in _get_response
>     response = wrapped_callback(request, *callback_args, **callback_kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericase.py",
> line 68, in view
>     return self.dispatch(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoutilsdecorators.py",
> line 45, in _wrapper
>     return bound_method(*args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoutilsdecorators.py",
> line 142, in _wrapped_view
>     response = view_func(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthviews.py",
> line 220, in dispatch
>     return super().dispatch(*args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericase.py",
> line 88, in dispatch
>     return handler(request, *args, **kwargs)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangoviewsgenericedit.py",
> line 142, in post
>     return self.form_valid(form)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthviews.py",
> line 233, in form_valid
>     form.save(**opts)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthforms.py",
> line 295, in save
>     email, html_email_template_name=html_email_template_name,   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocontribauthforms.py",
> line 250, in send_mail
>     email_message.send()   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailmessage.py",
> line 291, in send
>     return self.get_connection(fail_silently).send_messages([self])   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailackendssmtp.py",
> line 110, in send_messages
>     sent = self._send(message)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailackendssmtp.py",
> line 122, in _send
>     from_email = sanitize_address(email_message.from_email, encoding)   File
> "C:UsersDELLAppDataLocalProgramsPythonPython37-32libsite-packagesdjangocoremailmessage.py",
> line 119, in sanitize_address
>     address = Address(nm, addr_spec=addr)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemailheaderregistry.py",
> line 42, in __init__
>     a_s, rest = parser.get_addr_spec(addr_spec)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemail\_header_value_parser.py",
> line 1582, in get_addr_spec
>     token, value = get_local_part(value)   File "C:UsersDELLAppDataLocalProgramsPythonPython37-32libemail\_header_value_parser.py",
> line 1394, in get_local_part
>     if value[0] in CFWS_LEADER: IndexError: string index out of range
答案

我对您的观点感到困惑，这里是我对更改密码的看法

class PasswordResetView(PasswordContextMixin, FormView):
    email_template_name = 'registration/password_reset_email.html'
    extra_email_context = None
    form_class = PasswordResetForm
    from_email = None
    html_email_template_name = None
    subject_template_name = 'registration/password_reset_subject.txt'
    success_url = reverse_lazy('password_reset_done')
    template_name = 'registration/password_reset_form.html'
    title = ('Password reset')
    token_generator = default_token_generator

    @method_decorator(csrf_protect)
    def dispatch(self, *args, **kwargs):
        return super().dispatch(*args, **kwargs)

    def form_valid(self, form):
        opts = {
            'use_https': self.request.is_secure(),
            'token_generator': self.token_generator,
            'from_email': self.from_email,
            'email_template_name': self.email_template_name,
            'subject_template_name': self.subject_template_name,
            'request': self.request,
            'html_email_template_name': self.html_email_template_name,
            'extra_email_context': self.extra_email_context,
        }
        form.save(**opts)
        return super().form_valid(form)


INTERNAL_RESET_URL_TOKEN = 'set-password'
INTERNAL_RESET_SESSION_TOKEN = '_password_reset_token'

UPDATED :

EMAIL_HOST = "smtp.gmail.com"
EMAIL_HOST_USER = "youremail@gmail.com"
EMAIL_HOST_PASSWORD = "<Your Passcode Here>"
EMAIL_PORT = 587
EMAIL_USE_TLS = True

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