“The included URLconf 'my_image.urls' does not appear to have any patterns in it”解决办法。

运行Django程序的时候，出现“django.core.exceptions.ImproperlyConfigured: The included URLconf 'my_image.urls' does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import.”错误。

看到 'my_image.urls'这个就应该想到是不是url配置方式有问题。（‘my_image’是我的项目名）

解决问题之前，我的 'my_image.urls'配置内容如下：

from django.conf.urls import url,include
from django.contrib import admin
from django.conf.urls.static import static
from django.conf import settings

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


] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

其中‘image.urls’是应用的urls名，它的代码如下：

from django.conf.urls import url
import image.views as bv

appname = 'image'

urlpatterns = [
    url(r'^index/', bv.index, name='index'),
    url(r'^saveImg/', bv.saveImg, name='saveImg'),
    url(r'^validate/', bv.validate, name='validate'),
]

改变urls的配置方式，修改后我的'my_image.urls'代码如下，其实就是include()中的第一参数是一个二元元组，将应用名添加在元组中：

from django.conf.urls import url,include
from django.contrib import admin
from django.conf.urls.static import static
from django.conf import settings


urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^image/', include(('image.urls', 'image'), namespace='image')),   # 此处修改了
    url(r'^captcha/', include('captcha.urls'))


] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

‘image.urls’修改如下：

from django.conf.urls import url
import image.views as bv


#appname = 'image'   # 此处注释掉

urlpatterns = [
    url(r'^index/', bv.index, name='index'),
    url(r'^saveImg/', bv.saveImg, name='saveImg'),
    url(r'^validate/', bv.validate, name='validate'),
]

其实，就是改变项目与应用两级的urls.py文件中的配置方式。

第二种解决方法，就是看看应用urls配置中的appname=‘应用名’ 改成app_name=‘应用名’。