pktt.py 文件源码

def __contains__(self, expr):
        """Implement membership test operator.
           Return true if expr matches a packet in the trace file,
           false otherwise.

           The packet is also stored in the object attribute pkt.

           Examples:
               # Find the next READ request
               if ("NFS.argop == 25" in x):
                   print x.pkt.nfs

           See match() method for more information
        """
        pkt = self.match(expr)
        return (pkt is not None)