使用python3.7＋django2.2＋pymysql时遇到这个错误：django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.2 1。 别急，这主要是django2.2内部的一个版本限制在作怪
处理方案
报错1：django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.
原因：django2.2和pymysql版本不匹配。mysqldb不支持python3.
解决办法： \python安装路径\Python37\Lib\site-packages\django\db\backends\mysql（python安装目录，或者虚拟环境目录）打开base.py，注释掉以下内容：
if version < (1, 3, 13):
raise ImproperlyConfigured(‘mysqlclient 1.3.13 or newer is required; you have %s.’ % Database.version) 报错2：File “\python安装目录（python虚拟目录）\Python37\lib\site-packages\django\db\backends\mysql\operations.py”, line 146, in last_executed_query query = query.decode(errors=‘replace’) AttributeError: ‘str’ object has no attribute ‘decode’ 解决办法： 打开此文件把146行的decode修改为encode
原文地址：django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.2
