+ 不支持的操作数类型：'RegexURLPattern' 和 'str'

Question

您好，我无法解决这个问题，

我关注了http://blackglasses.me/2013/09/17/custom-django-user-model/ 教程.

我不记得了，但我想我在某处读到过，如果你使用功能视图，你必须导入一些东西，但不确定这里是否是这种情况，或者这是否属实。

这是我在帐户应用程序中用于 urls.py 的代码

from django.conf.urls import patterns, url
from accounts import views

urlpatterns = patterns(
   url(r'^register$', 'accounts.views.register', name='register'),
   url(r'^login$', 'accounts.views.login', name='login'),
   url(r'^logout$', 'accounts.views.logout', name='logout'),

)

主要urls.py

from django.conf.urls import patterns, include, url
from django.contrib import admin

urlpatterns = ['',
    url(r'^accounts/', include('accounts.urls', namespace='accounts')),
    url(r'^admin/', include(admin.site.urls)),
  ]

下面是错误信息和回溯

Environment:
Django Version: 1.8.5
Python Version: 3.4.0

Request Method: GET
Request URL: http://127.0.0.1:8777/

Django Version: 1.8.5
Python Version: 3.4.0


Request Method: GET
Request URL:    http://127.0.0.1:8777/
Django Version: 1.8.5
Exception Type: TypeError
Exception Value:    
unsupported operand type(s) for +: 'RegexURLPattern' and 'str'
Exception Location: /home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/urlresolvers.py in add_prefix, line 223
Python Executable:  /home/kevin/djangoP/envRU/bin/python
Python Version: 3.4.0


Traceback:

    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/handlers/base.py" in get_response
      119.                 resolver_match = resolver.resolve(request.path_info)

    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/urlresolvers.py" in resolve
      365.             for pattern in self.url_patterns:


    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/urlresolvers.py" in url_patterns
      401.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)

    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/urlresolvers.py" in urlconf_module
      395.             self._urlconf_module = import_module(self.urlconf_name)

    File "/home/kevin/djangoP/envRU/lib/python3.4/importlib/__init__.py" in import_module
      109.     return _bootstrap._gcd_import(name[level:], package, level)

    File "/home/kevin/djangoP/ru/rulinked/rulinked/urls.py" in <module>
      20.     url(r'^accounts/', include('accounts.urls', namespace='accounts')),


    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/conf/urls/__init__.py" in include
      33.         urlconf_module = import_module(urlconf_module)


    File "/home/kevin/djangoP/envRU/lib/python3.4/importlib/__init__.py" in import_module
      109.     return _bootstrap._gcd_import(name[level:], package, level)


    File "/home/kevin/djangoP/ru/rulinked/accounts/urls.py" in <module>
      7.     url(r'^logout$', 'accounts.views.logout', name='logout'),

    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/conf/urls/__init__.py" in patterns
      61.             t.add_prefix(prefix)

    File "/home/kevin/djangoP/envRU/lib/python3.4/site-packages/django/core/urlresolvers.py" in add_prefix
      223.         self._callback_str = prefix + '.' + self._callback_str

    Exception Type: TypeError at /
    Exception Value: unsupported operand type(s) for +: 'RegexURLPattern' and 'str'

如果你读到那么多，那么谢谢你，我知道很多，但我真的迷路了，不知道还能从哪里得到帮助。

Answer 1

将您的应用 urls.py 修改为：

from django.conf.urls import patterns, url
from accounts import views

urlpatterns = patterns('', // add the empty string here
   url(r'^register$', 'accounts.views.register', name='register'),
   url(r'^login$', 'accounts.views.login', name='login'),
   url(r'^logout$', 'accounts.views.logout', name='logout'),
)

此外，从您的主 urls.py:

中删除空字符串

from django.conf.urls import patterns, include, url
from django.contrib import admin

urlpatterns = [
    url(r'^accounts/', include('accounts.urls', namespace='accounts')),
    url(r'^admin/', include(admin.site.urls)),
  ]

因为我认为使用方括号版本时不需要它。

Answer 2

您混淆了两种可用的语法。

patterns() 函数将前缀作为第一个参数，它是一个（可能为空的）字符串，returns 一个列表，每个模式都添加了前缀。其他参数是 url() 个实例。普通列表应仅包含 url() 个实例，并且您不能添加公共前缀。

patterns() 已弃用，所以最好到处使用列表：

accounts/urls.py

urlpatterns = [
   url(r'^register$', 'accounts.views.register', name='register'),
   url(r'^login$', 'accounts.views.login', name='login'),
   url(r'^logout$', 'accounts.views.logout', name='logout'),
]

urls.py

urlpatterns = [
    url(r'^accounts/', include('accounts.urls', namespace='accounts')),
    url(r'^admin/', include(admin.site.urls)),
]

关于导入视图：如果你传递函数本身，你需要导入它们。如果您不先导入它，该函数将不可用并导致 NameError。现在你传递的是一个导入路径，而不是函数，所以你不必导入任何东西。这也已弃用（对于视图，不包括其他 url 配置），因此为了与未来的 Django 版本兼容，您可以将其更改为：

from django.conf.urls import url
from accounts import views

urlpatterns = [
   url(r'^register$', views.register, name='register'),
   url(r'^login$', views.login, name='login'),
   url(r'^logout$', views.logout, name='logout'),
]

请注意，url() 的第二个参数不再是字符串，而是导入的 views 模块中的视图函数本身。

+ 不支持的操作数类型：'RegexURLPattern' 和 'str'

unsupported operand type(s) for +: 'RegexURLPattern' and 'str'

python

django

django-urls