用开放连接退出Python套接字客户端吗？

Question

The following script receiving data from a socket connection does not react to the CTRL+C signal sent in order to exit:

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
"""
import socket
HOST = '192.168.178.1'
PORT = 1012
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
while 1:
    data = s.recv(1024)
    print 'Received', repr(data)
s.close()

How can the program be modified so that program input or the default signal causes the infinite loop to be broken in order to end the program gracefully?

Answer 1

Use Select

import socket
import select

HOST = '192.168.178.1'
PORT = 1012
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setblocking(1)
s.connect((HOST, PORT))
time_out=None
ready=[[s],[],[], time_out]

if ready:
   s.recv(1024)

s.close()

Answer 2

One solution is to close the socket from another thread as shown by S. Prasanna in his blog article . Another may be to catch the signal somehow.