Python 3 TypeError: str does not support the buffer interface

摘要: Review a Python 2 socket example

Review a Python 2 socket example

whois.py
import sys
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(("whois.arin.net", 43))
s.send(sys.argv[1] + "\r\n")
#Python 2.7 send signature
#socket.send(string[, flags])

If compile with Python 3, it prompts the following error?

Traceback (most recent call last):
  File "C:\repos\hc\whois\python\whois.py", line 6, in <module>
    s.send(sys.argv[1] + "\r\n")
TypeError: 'str' does not support the buffer interface

Solution

In Python 3, the socket accepts bytes, you need to convert string to bytes with a encode() function like this :

whois.py
import sys
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(("whois.arin.net", 43))
#convert string to bytes
s.send((sys.argv[1] + "\r\n").encode())
#Python 3.4 send signature
#socket.send(bytes[, flags])

P.S Tested with Python 3.4.3

References

  1. Python 3 socket send documentation
  2. Python 2 socket send documentation
  3. Python Whois client example

上一篇: Tomcat 7 + Java 8 : Invalid byte tag in constant pool: 15
下一篇: HSQL identify auto increase ID
 评论 ( What Do You Think )
名称
邮箱
网址
评论
验证
   
 

 


  • 微信公众号

  • 我的微信

站点声明:

1、一号门博客CMS,由Python, MySQL, Nginx, Wsgi 强力驱动

2、部分文章来源于互联网, 若有侵权, 联系邮箱:summer@yihaomen.com, 同时欢迎大家注册用户,主动发布文章.

3、鄂ICP备14001754号-3, 鄂公网安备 42280202422812号