python从入门到实践，Django3.0 报错Specifying a namespace in include() without providing an app_name

 运行环境：

python3.7

 

runserver发生错误

django.core.exceptions.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.

意思是：

在include方法里面指定namespace却不提供app_name是不允许的。 

在包含的模块里设置app_name变量，或者在include方法里面提供app_name参数。

 

原代码：

• 项目目录中同时存在app/urls.py和proj/urls.py
• 在proj/urls.py使用include方法

from django.urls import path,include
from app import urls as app_url
urlpatterns = [
path('', include(app_url, namespace='common')),
]

• 在app/urls.py中对应url

from django.urls import path
from .views import index
urlpatterns = [
path('',index,name='index'),
]

 

修改后代码：

 

方法1：在proj/urls.py中修改

from django.urls import path,include
from app import urls as app_url
urlpatterns = [
path('', include((common_url,'common'), namespace='common')),
]

 

方法2：在app/urls.py中修改

from django.urls import path
from .views import index
app_name='common'
urlpatterns = [
path('',index,name='index'),
]

 

参考url：

https://blog.csdn.net/qq_38058202/article/details/80362128