Django2.0异常：Specifying a namespace in include() without providing an app_name is not supported.

欢迎使用 小书匠(xiaoshujiang)编辑器，您可以通过设置里的修改模板来改变新建文章的内容。

Django2.0异常：Specifying a namespace in include() without providing an app_name is not supported.编辑器

在CRM项目权限分配管理中
用django设置好了URL后报错。URL代码为

from django.conf.urls import url,includefrom django.contrib import adminurlpatterns = [ url(r‘^admin/‘, admin.site.urls), url(r‘^rbac/‘, include(‘rbac.urls‘,namespace=‘rbac‘)), url(r‘^‘, include(‘web.urls‘)),]

源码为

def include(arg, namespace=None): app_name = None if isinstance(arg, tuple): # Callable returning a namespace hint. try: urlconf_module, app_name = arg except ValueError: if namespace: raise ImproperlyConfigured( ‘Cannot override the namespace for a dynamic module that ‘ ‘provides a namespace.‘ ) raise ImproperlyConfigured( ‘Passing a %d-tuple to include() is not supported. Pass a ‘ ‘2-tuple containing the list of patterns and app_name, and ‘ ‘provide the namespace argument to include() instead.‘ % len(arg) ) else: # No namespace hint - use manually provided namespace. urlconf_module = arg if isinstance(urlconf_module, str): urlconf_module = import_module(urlconf_module) patterns = getattr(urlconf_module, ‘urlpatterns‘, urlconf_module) app_name = getattr(urlconf_module, ‘app_name‘, app_name) if namespace and not app_name: raise ImproperlyConfigured( ‘Specifying a namespace in include() without providing an app_name ‘ ‘is not supported. Set the app_name attribute in the included ‘ ‘module, or pass a 2-tuple containing the list of patterns and ‘ ‘app_name instead.‘, ) namespace = namespace or app_name # Make sure the patterns can be iterated through (without this, some # testcases will break). if isinstance(patterns, (list, tuple)): for url_pattern in patterns: pattern = getattr(url_pattern, ‘pattern‘, None) if isinstance(pattern, LocalePrefixPattern): raise ImproperlyConfigured( ‘Using i18n_patterns in an included URLconf is not allowed.‘ ) return (urlconf_module, app_name, namespace)

作者：masserd
来源：CSDN
原文：https://blog.csdn.net/zoulonglong/article/details/79612973
版权声明：本文为博主原创文章，转载请附上博文链接！

从include()函数可以看出来，这个函数有两个参数，一个arg，一个namespace，我在代码中也是两个参数，但是异常中提示了，没有提供app_name,还提示需要传入一个两元元组，从第六行代码,可以看出来，arg就是那个元组，且给app_name赋值了

urlconf_module, app_name = arg

经过一番面向百度debug,修改后代码为

from django.conf.urls import url,includefrom django.contrib import adminurlpatterns = [ url(r‘^admin/‘, admin.site.urls), url(r‘^rbac/‘, include((‘rbac.urls‘,‘rbac‘),namespace=‘rbac‘)), url(r‘^‘, include(‘web.urls‘)),]

成功解决问题