python之找不到 Facebook 后端

伙计们，我似乎无法让它工作，在阅读了类似的问题后，我的问题不是因为没有指定 key 和 secret ，也不是因为我忘记在 facebook 之后添加“-oauth2”。 请帮忙??

我在浏览器上看到的只是未找到后端。也许只是因为我的 django 或 python 版本太新了？？ 我使用 python 3.6 和 django 2.0...

这是我项目的settings.py

SECRET_KEY = '<my_secret_key>' 
 
# SECURITY WARNING: don't run with debug turned on in production! 
DEBUG = True 
 
 
# Application definition 
 
INSTALLED_APPS = [ 
    'django.contrib.admin', 
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'main_app', 
    'django_filters', 
    'cuentas', 
    'social_django', 
] 
 
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', 
    'social_django.middleware.SocialAuthExceptionMiddleware', 
] 
 
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', 
                'social_django.context_processors.backends', 
                'social_django.context_processors.login_redirect', 
            ], 
        }, 
    }, 
] 
 
# python social auth settings 
SOCIAL_AUTH_FACEBOOK_KEY = '<facebook_app_id>' 
 
SOCIAL_AUTH_FACEBOOK_SECRET = '<facebook_app_secret>' 
 
SOCIAL_AUTH_FACEBOOK_SCOPE = ['email'] 
 
SOCIAL_AUTH_FACEBOOK_API_VERSION = '2.11' 
 
AUTHENTICATION_BACKENDS = [ 
    'social_core.backends.facebook.FacebookAppOAuth2', 
    'social_core.backends.facebook.FacebookOAuth2', 
    'django.contrib.auth.backends.ModelBackend', 
] 
 
SOCIAL_AUTH_URL_NAMESPACE = 'social' 
 
SOCIAL_AUTH_PIPELINE = ( 
    'social_core.pipeline.social_auth.social_details', 
    'social_core.pipeline.social_auth.social_uid', 
    'social_core.pipeline.social_auth.social_user', 
    'social_core.pipeline.user.get_username', 
    'social_core.pipeline.user.create_user', 
    'social_core.pipeline.social_auth.associate_user', 
    'social_core.pipeline.social_auth.load_extra_data', 
    'social_core.pipeline.user.user_details', 
    'social_core.pipeline.social_auth.associate_by_email', 
) 

更新...这是我的主要应用程序的 urls.py

from django.contrib import admin 
from django.urls import path, include 
from django.conf import settings 
from django.conf.urls.static import static 
 
urlpatterns = [ 
    path('', include('social_django.urls', namespace='social')), 
    path('admin/', admin.site.urls), 
    path('', include('main_app.urls') ), 
    path('cuentas/', include('cuentas.urls')), 
] 
 
if settings.DEBUG is True: 
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) 

这是使用 facebook html 链接登录

<a href="{% url 'social:begin' 'facebook-oauth2' %}">Facebook</a> 

我刚刚在 settings.py 中添加了配置以输出更多日志信息，所以这是我尝试使用 facebook 登录时的输出

Performing system checks.. 
System check identified no issues (0 silenced). 
January 12, 2018 - 11:23:23 
Django version 2.0, using settings 'jaguamigos.settings' 
Starting development server at http://127.0.0.1:80/ 
Quit the server with CTRL-BREAK. 
Not Found: /favicon.ico 
Not Found: /favicon.ico 
Not Found: /login/facebook-oauth2/ 
Not Found: /login/facebook-oauth2/ 

请您参考如下方法:

omab绝对正确，为 facebook 后端插入 name 属性就成功了。

# Use 'facebook' instead of 'facebook-oauth2' 
{% url 'social:begin' 'facebook' %}