django-mysql-manager

<pre>
def drop_database(sender, **kwargs):

MySQLDatabase = cache.get_model('mysql_manager', 'MySQLDatabase')

instance = kwargs['instance']

# First revoke the privileges of the user on this database

MySQLDatabase.objects.revoke_privileges(instance.name, instance.user.name)

...

# Then delete the database.

MySQLDatabase.objects.drop_database(instance.name)
</pre>

Issue is caused by this line (@instance.user.name@ does not exist):

<pre>
MySQLDatabase.objects.revoke_privileges(instance.name, instance.user.name)
</pre>