Django报错django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.

Mac查看django的安装路径

 python -c "import django; print(django.__path__)"

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Django版本：2.2   python版本：3.7  pymysql：0.9.3

创建数据库的时候报错：

django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/Django-2.2.4-py3.7.egg/django/db/backends/mysql/base.py注释以下内容

#version = Database.version_info
 #if version < (1, 3, 13):
 #   raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__    )

/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/Django-2.2.4-py3.7.egg/django/db/backends/mysql/operations.py

找到operations.py146行原来是decode的方法，将它改为encode