蟒蛇 - urllib.error.URLError：<urlopen錯誤超時>

我是新來的蟒蛇和我使用python 3.5.0。我試圖實現一個簡單的代碼如下：蟒蛇 - urllib.error.URLError：<urlopen錯誤超時>

import urllib.request 
page = urllib.request.urlopen("http://www.google.com",timeout=20) 
text = page.read().decode("utf8") 
print(text)

但沒想到我居然也得到了以下錯誤：

Traceback (most recent call last): 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 1240, in do_open 
    h.request(req.get_method(), req.selector, req.data, headers) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 1083, in request 
    self._send_request(method, url, body, headers) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 1128, in _send_request 
    self.endheaders(body) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 1079, in endheaders 
    self._send_output(message_body) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 911, in _send_output 
    self.send(msg) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 854, in send 
    self.connect() 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\http\client.py", line 826, in connect 
    (self.host,self.port), self.timeout, self.source_address) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\socket.py", line 707, in create_connection 
    raise err 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\socket.py", line 698, in create_connection 
    sock.connect(sa) 
socket.timeout: timed out 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "D:\Python\Test_Run.py", line 2, in <module> 
    page = urllib.request.urlopen("http://www.google.com",timeout=20) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 162, in urlopen 
    return opener.open(url, data, timeout) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 465, in open 
    response = self._open(req, data) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 483, in _open 
    '_open', req) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 443, in _call_chain 
    result = func(*args) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 1268, in http_open 
    return self.do_open(http.client.HTTPConnection, req) 
    File "C:\Users\Dell\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 1242, in do_open 
    raise URLError(err) 
urllib.error.URLError: <urlopen error timed out>

我連接到我的大學網絡。這是爲什麼我得到這個？我能做些什麼呢？

來源

2016-07-29 Tharrma Shastha

我在家用電腦上試過了你的代碼，它工作正常。問題應該在你的學校網絡中。嘗試它沒有'超時= 20' – atayenel

是的，我試過了，沒有超時。但這需要更長的時間，並且會出現相同的錯誤。 –

我猜你的瀏覽器被配置爲使用代理服務器，它可以讓你聯繫谷歌，但直接的http連接可能不被允許（即它們在某個時候被防火牆丟棄）...... – twalberg

MAX_RETRY = 5 

def get_html(html_url, timeout=10, decode='utf-8'): 
    for tries in range(MAX_RETRY): 
     try: 
      with urllib.request.urlopen(html_url, timeout=timeout) as response: 
       return response.read().decode(decode) 
     except Exception as e: 
      logging.warning(str(e) + ',html_url:{0}'.format(html_url)) 
      if tries < (MAX_RETRY - 1): 
       continue 
      else: 
       print('Has tried {0} times to access url {1}, all failed!'.format(MAX_RETRY, html_url)) 
       return None

來源

2017-06-26 05:14:20 P0WER1ISA

蟒蛇 - urllib.error.URLError：<urlopen錯誤超時>

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