import threading
import socket


encoding = 'utf-8'
BUFSIZE = 1024


# a read thread, read data from remote
class Reader(threading.Thread):
    def __init__(self, client):
        threading.Thread.__init__(self)
        self.client = client
        
    def run(self):
        while True:
            data = self.client.recv(BUFSIZE)
            if(data):
                string = bytes.decode(data, encoding)
                print(string, end='')
            else:
                break
        print("close:", self.client.getpeername())
        
    def readline(self):
        rec = self.inputs.readline()
        if rec:
            string = bytes.decode(rec, encoding)
            if len(string)>2:
                string = string[0:-2]
            else:
                string = ' '
        else:
            string = False
        return string


# a listen thread, listen remote connect
# when a remote machine request to connect, it will create a read thread to handle
class Listener(threading.Thread):
    def __init__(self, port):
        threading.Thread.__init__(self)
        self.port = port
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.sock.bind(("0.0.0.0", port))
        self.sock.listen(0)
    def run(self):
        print("listener started")
        while True:
            client, cltadd = self.sock.accept()
            Reader(client).start()
            cltadd = cltadd
            print("accept a connect")


lst  = Listener(9011)   # create a listen thread
lst.start() # then start

######################

转自：https://blog.csdn.net/huliang82/article/details/18322033/