Question

我正在阅读一个名为“编写第一个Django应用程序”的官方Django教程，目前在第2部分。这是URL：https://docs.djangoproject.com/en/2.2/intro/tutorial02/

当按照说明尝试访问位于http://127.0.0.1:8000/admin/的管理面板时，出现以下错误：

Environment:

Request Method: GET
Request URL: http://localhost:8000/admin/

Django Version: 2.2.4
Python Version: 3.7.3
Installed Applications:
['polls.apps.PollsConfig',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed 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']



Traceback:

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/sites.py" in wrapper
  241.                 return self.admin_view(view, cacheable)(*args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  44.         response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/sites.py" in inner
  213.                 if request.path == reverse('admin:logout', current_app=self.name):

File "/usr/local/lib/python3.7/site-packages/django/urls/base.py" in reverse
  58.                 app_list = resolver.app_dict[ns]

File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py" in app_dict
  512.             self._populate()

File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py" in _populate
  463.                     url_pattern._populate()

File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py" in _populate
  446.             for url_pattern in reversed(self.url_patterns):

Exception Type: TypeError at /admin/
Exception Value: 'set' object is not reversible

我在装有Python 3的Mac上。我查找了所有其他类似问题以查找此错误，但我的代码似乎是正确的，所以那里的答案都没有让我高兴

这是我的urls.py代码

from django.contrib import admin
from django.urls import include, path

urlpatterns = [
  path('admin/', admin.site.urls),
  path('polls/', include('polls.urls'))
]

这是settings.py中的应用列表

INSTALLED_APPS = [
    'polls.apps.PollsConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

您知道这里可能出什么问题吗？

Django教程错误：“ / admin /处的TypeError-'set'对象不可逆”

0 个答案: