Urlopen funktioniert in Python 2.7 aber schlägt in Python 3.4 fehl

Question

Ich habe sowohl Python 2.7.10 und Python 3.4.4 auf meinem Computer ausgeführt. Der folgende Code funktioniert in Python 2.7.10:

import urllib2 
print urllib2.urlopen('http://google.com').read() 

Allerdings, wenn ich zu Python 3.4.4 bewegen auf und laufen

import urllib.request 
print(urllib.request.urlopen('http://google.com').read()) 

ich ein langes Paar Fehler erhalten:

Traceback (most recent call last): 
    File "C:\Python34\lib\urllib\request.py", line 1183, in do_open 
    h.request(req.get_method(), req.selector, req.data, headers) 
    File "C:\Python34\lib\http\client.py", line 1137, in request 
    self._send_request(method, url, body, headers) 
    File "C:\Python34\lib\http\client.py", line 1182, in _send_request 
    self.endheaders(body) 
    File "C:\Python34\lib\http\client.py", line 1133, in endheaders 
    self._send_output(message_body) 
    File "C:\Python34\lib\http\client.py", line 963, in _send_output 
    self.send(msg) 
    File "C:\Python34\lib\http\client.py", line 898, in send 
    self.connect() 
    File "C:\Python34\lib\http\client.py", line 871, in connect 
    self.timeout, self.source_address) 
    File "C:\Python34\lib\socket.py", line 516, in create_connection 
    raise err 
    File "C:\Python34\lib\socket.py", line 507, in create_connection 
    sock.connect(sa) 
TimeoutError: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "<pyshell#17>", line 1, in <module> 
    print(urllib.request.urlopen('http://google.com').read()) 
    File "C:\Python34\lib\urllib\request.py", line 161, in urlopen 
    return opener.open(url, data, timeout) 
    File "C:\Python34\lib\urllib\request.py", line 464, in open 
    response = self._open(req, data) 
    File "C:\Python34\lib\urllib\request.py", line 482, in _open 
    '_open', req) 
    File "C:\Python34\lib\urllib\request.py", line 442, in _call_chain 
    result = func(*args) 
    File "C:\Python34\lib\urllib\request.py", line 1211, in http_open 
    return self.do_open(http.client.HTTPConnection, req) 
    File "C:\Python34\lib\urllib\request.py", line 1185, in do_open 
    raise URLError(err) 
urllib.error.URLError: <urlopen error [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond> 

Ich habe verstanden, dass ein Fehler wie dieser Probleme mit den Windows-Einstellungen wie vorgeschlagen here darstellt (ich verwende Windows 7), aber was ich nicht verstehen kann ist, wie es in 2.7 und nicht in 3.4 funktioniert.

Answer 1

Nach der Arbeit an der Lösung begann der Python 2.7-Code den gleichen Fehler zu werfen. Aus Frustration begann ich den Microsoft Fix anzuwenden. Ich begann mit dem Abmelden und erneutem Anmelden. Alles funktioniert jetzt wie geplant ...