Python3.3 HTML Client TypeError:'str'不支持缓冲区接口

Question

import socket

# Set up a TCP/IP socket
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

# Connect as client to a selected server
# on a specified port
s.connect(("www.wellho.net",80))

# Protocol exchange - sends and receives
s.send("GET /robots.txt HTTP/1.0\n\n")
while True:
        resp = s.recv(1024)
        if resp == "": break
        print(resp,)

# Close the connection when completed
s.close()
print("\ndone")

错误:

cg0546wq@smaug:~/Desktop/440$ python3 HTTPclient.py
Traceback (most recent call last):
  File "HTTPclient.py", line 11, in <module>
    s.send("GET /robots.txt HTTP/1.0\n\n")
TypeError: 'str' does not support the buffer interface

不能用

• urllib.request.urlopen
• urllib2.urlopen
• http
• http.client
• httplib

Answer 1

套接字只能接受字节,而您尝试向其发送Unicode字符串.

将字符串编码为字节:

s.send("GET /robots.txt HTTP/1.0\n\n".encode('ascii'))

或者给它一个字节文字(以b前缀开头的字符串文字):

s.send(b"GET /robots.txt HTTP/1.0\n\n")

考虑到您收到的数据也将是bytes值; 你不能只是比较那些''.只测试一个空响应,你可能想要解码str打印时的响应:

while True:
    resp = s.recv(1024)
    if not resp: break
    print(resp.decode('ascii'))