AttributeError: module ‘django.db.models‘ has no attribute ‘SubfieldBase‘
http://www.guanggua.com/question/35166085-How-to-deal-with-SubfieldBase-has-been-deprecated-Use-Fieldfrom_db_value-instead.html
说的很详细，后期会整理
Python 报错 AttributeError: module 'django.db.models' has no attribute 'SubfieldBase'
原文：https://www.cnblogs.com/yun1108/p/9007198.html