NoneType object has no attribute 'cursor'

[w564791]

def execute(self, *a, **kw):
    cursor = kw.pop('cursor', None)
    try:
        cursor = cursor or self.get_conn().cursor()
        cursor.execute(*a, **kw)
    except (AttributeError, MySQLdb.OperationalError):
        self.conn and self.conn.close()
        self.conn = None
        cursor = self.get_conn().cursor()
        cursor.execute(*a, **kw)
    return cursor

报错直接致命第71行，这里为什么又要连一次呢，上面不是已经捕获了错误了么，except里面再连一次，就捕获不到错误了啊

[Vicla]

#106

[iceqing]

参考#65