170925_1 Python socket 创建TCP的服务器端和客户端

【Python版本】3.6

【遇到的问题】

客户端和服务器端都遇到：TypeError: a bytes-like object is required, not 'str'

【解决方案】

参考：https://stackoverflow.com/questions/13274553/python-3-3-socket-typeerror

创建TCP服务器端：

from socket import *
from time import ctime

host = ''
port = 21563
buf_size = 1024
addr = (host, port)


tcpSerSock = socket(AF_INET, SOCK_STREAM)
tcpSerSock.bind(addr)
tcpSerSock.listen(5)

while True:
    print("waiting for connection....")
    tcpCliSock, ADDR = tcpSerSock.accept()
    print("...connected from:", ADDR)

    while True:
        data = tcpCliSock.recv(buf_size)
        print(data)
        print(bytes(ctime(), 'utf-8'))
        if not data:
            break
        response = '[%s] %s' % (ctime(), data.decode('utf-8'))
        tcpCliSock.send(response.encode('utf-8'))
    tcpCliSock.close()

tcpSerSock.close()

创建TCP客户端：

from socket import *


host = 'localhost'
port = 21563
buf_size = 1024
addr = (host, port)

tcpCliSock = socket(AF_INET, SOCK_STREAM)
tcpCliSock.connect(addr)

while True:
    data = input('>')

    if not data:
        break
    tcpCliSock.send(data.encode('utf-8'))
    data = tcpCliSock.recv(buf_size)
    if not data:
        break
    print(data.decode())

tcpCliSock.close()