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Python code:

import urllib2

if __name__ == '__main__':
url = 'http://hh'
try:
urllib2.urlopen(url, timeout=5)
except URLError, e:
print e.reason



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    except URLError, e:
NameError: name 'URLError' is not defined
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from urllib2 import Request, urlopen, URLError, HTTPError
req = Request(someurl)
try:
    response = urlopen(req)
except HTTPError, e:
    print 'The server couldn\'t fulfill the request.'
    print 'Error code: ', e.code
except URLError, e:
    print 'We failed to reach a server.'
    print 'Reason: ', e.reason
else:
    # everything is fine

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ÎÒÓÃpythonµÄ urllib2À´×¥È¡ÍøÒ³ Ôõô²ÅÄܲ¶»ñ¸÷ÖÖ·µ»ØµÄÒì³£ÄØ?
ÓÐÈçÏ´úÂë:
Python codeimport urllib2if__name__=='__main__':
    url='http://hh'try:
       


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conn.request('','')
rd=conn.getresponse()
conn.close()
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import re
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