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I have 500 clients use the program, the program use python 2.7.12 + pyqt, the OS is windows XP, But now a computer has a error. The error is that when use urllib.urlopen, it returns socket error, error code is 10061.
But, i.e., the server IP is 192.168.1.12, the computer can open the web page use IE browser with http://192.168.1.12, and use the cmd: telnet 192.168.1.12 80, it's fine.
The computer's Windows firewall is disabled, and the antivirus software is closed. But when use urllib.urlopen('http://192.168.1.12'), it always returns socket error 10061. The other 500 clients don't have this issue, only this one. And I checked the IE browser settings, it's not set proxy. Anybody can help me ? I need your help, thanks all.

Jianhua Zhu
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    Possible duplicate of [Python urllib.request.urlopen() returning error 10061?](http://stackoverflow.com/questions/9586951/python-urllib-request-urlopen-returning-error-10061) – vsminkov Aug 21 '16 at 11:30
  • Maybe, I'll try it. Thanks – Jianhua Zhu Aug 21 '16 at 12:19
  • I checked the IE browser settings, it's not set Proxy. – Jianhua Zhu Aug 22 '16 at 08:34
  • You already tried telnet, so what is the error message, when you try `socket().connect(('192.168.1.12', 80))` directly from Python? – dhke Aug 22 '16 at 08:52
  • @dhke It shows: File "socket.pyc", line 575, in create_connection \n IOError: [Errno socket error] [Errno 10061] – Jianhua Zhu Aug 22 '16 at 10:12
  • @JianhuaZhu Sounds awfully like a "personal firewall" issue, but you already wrote that firewall and antivirus are off. Does `socket.getaddrinfo('192.168.1.12', 80)` return anything strange on the problematic host? – dhke Aug 22 '16 at 11:00
  • @dhke But now I can't debug it, because the custom's computer no python and I no permission install python on it, and I'll try it on my computer later. – Jianhua Zhu Aug 22 '16 at 11:28
  • @JianhuaZhu erm? The system is built using Python and the target machine does not have Python on it? – dhke Aug 22 '16 at 11:49
  • @dhke yes, the target computer OS is windows xp, it's no python on it, and because secrecy, I can't use it debug. – Jianhua Zhu Aug 22 '16 at 13:03
  • @dhke And, the program used on this computer more than 1 year, it can't connect the server from 2016-08-18. The server has no any change. – Jianhua Zhu Aug 22 '16 at 13:06
  • @dhke I solved the problem. Like this urllib.urlopen("http://192.168.1.12", proxies={}) – Jianhua Zhu Aug 24 '16 at 08:25
  • @JianhuaZhu So somebody has setup a broken proxy configuration on that machine ... – dhke Aug 24 '16 at 10:03

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