pymysql.err.OperationalError: (1045, “Access denied for user ‘root‘@‘localhost‘ (using password: NO)

问题描述： Django迁移mysql——执行命令python manage.py makemigrations api 时报错，报错信息：pymysql.err.OperationalError: (1045, "Access denied for user 'root'@'localhost' (using password: NO)") django.db.utils.Operational

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