gaierror：[Errno 8] nodename或servname未提供，或未知

Question

你好，我是python的新手，我正在写一个生成dns请求的代码

    from socket import error as socket_error
    import threading
    from random import randint
    from time import sleep

    def task(number):
       try :
          HOST = Random_website.random_website().rstrip() # fetches url
          PORT = 80              # The same port as used by the server
          s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

          s.connect((HOST, PORT))
          print(str(number) +":"+HOST +"Connected")
       except socket_error as serr:
         if serr.errno != errno.ECONNREFUSED:
           # Not the error we are looking for, re-raise
            raise serr      

  thread_list = []

  for i in range(1, 100):    
    t = threading.Thread(target=task, args=(i,))
    thread_list.append(t)

  for thread in thread_list:
      thread.start()

执行上面的代码会抛出这个错误，有没有人能帮我摆脱这个问题?我从一天开始就把头发拉出来了。

提前感谢

Answer 1

这样的：

Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "copyright", "credits" or "license()" for more information.
>>> import socket
>>> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>> s.connect(("www.google.com",80))
>>> s.connect(("http://www.google.com",80))

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    s.connect(("http://www.google.com",80))
  File "/usr/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
gaierror: [Errno -2] Name or service not known
>>> 

套接字不是 HTTP 连接!

发送请求前删除 HTTP:// 标签!

编辑：

>>> import socket
>>> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>> s.connect(("digan.net",80))
>>> s.connect(("digan.net/hahaha/hihihi/etc",80))

Traceback (most recent call last):
  File "<pyshell#8>", line 1, in <module>
    s.connect(("digan.net/hahaha/hihihi/etc",80))
  File "/usr/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
gaierror: [Errno -2] Name or service not known
>>> 

套接字无法将请求发送到其他路径。仅与服务器通信!

Answer 2

当一个web代理是"on“时，我得到了同样的错误信息，但是url指向了本地网络中的一台机器，没有代理就可以访问它。将web-proxy (http)设置为"off“为我解决了这个问题。

希望这能帮到你，亚历克斯。