Python的`urllib2`：为什么我使用`urlopen`打开维基百科页面时会出现403错误？

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Python的`urllib2`：为什么我使用`urlopen`打开维基百科页面时会出现403错误？

我在尝试从维基百科打开一个特定页面时遇到了一个奇怪的错误。这是页面的链接：http://en.wikipedia.org/wiki/OpenCola_(drink)。这是命令行会话的内容：

f = urllib2.urlopen('http://en.wikipedia.org/wiki/OpenCola_(drink)')

Traceback (most recent call last):

File "C:\Program Files\Wing IDE 4.0\src\debug\tserver\_sandbox.py", line 1, in

# Used internally for debug sandbox under external interpreter

File "c:\Python26\Lib\urllib2.py", line 126, in urlopen

return _opener.open(url, data, timeout)

File "c:\Python26\Lib\urllib2.py", line 397, in open

response = meth(req, response)

File "c:\Python26\Lib\urllib2.py", line 510, in http_response

'http', request, response, code, msg, hdrs)

File "c:\Python26\Lib\urllib2.py", line 435, in error

return self._call_chain(*args)

File "c:\Python26\Lib\urllib2.py", line 369, in _call_chain

result = func(*args)

File "c:\Python26\Lib\urllib2.py", line 518, in http_error_default

raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

urllib2.HTTPError: HTTP Error 403: Forbidden

这在两个不同的系统和不同的大陆上都发生过。有人知道为什么会出现这种情况吗？

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