Django1.9重寫用戶模型報錯has no attribute 'USERNAME_FIELD'

轉自：https://blog.csdn.net/xiazichenxi/article/details/80443460 Django2.2 Python3.7 在重寫用戶模型時報錯：AttributeError: type object ‘UserProfile’ has no attribute ‘USERNAME_FIELD’ models.py 新建用戶模型UserProfile繼承自A

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