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

OperationalError: (1045, “Access denied for user ‘root’@‘localhost’ (using password: NO)”)

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'pro202',
        'HOST':'127.0.0.1',
        'PORT':3306,
        'USER':'root',
        'PASSWORD':'123456'
    }
}

python manage.py migrate