遇到的错误
- NoReverseMatch at /
'blog' is not a registered namespace
解决方法：
app应用的urls中没有添加应用名
app_name = 'blog'
raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
解决方法：
找到Python安装路劲下的Python36-32\Lib\site-packages\django\db\backends\mysql\base.py文件 将文件中的如下代码注释
if version < (1, 3, 3):
raise ImproperlyConfigured("mysqlclient 1.3.3 or newer is required; you have %s" % Database.version)
2.'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.'查找错误出处，为conf.py文件
解决如下：
path('order/',include('order.urls,namespace='order'),#订单模块,改为
path('order/',include(('order.urls','order'),namespace='order')),#订单模块
