Eu instalei 3 scripts Python diferentes na minha máquina de 32 bits do Ubuntu 10.04 com o python 2.6.5.
Todos usam o urllib2 e sempre recebo este erro:
urllib2.URLError: Por quê?
Exemplos:
>>> import urllib2
>>> response = urllib2.urlopen("http://www.google.com")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/urllib2.py", line 126, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.6/urllib2.py", line 391, in open
response = self._open(req, data)
File "/usr/lib/python2.6/urllib2.py", line 409, in _open
'_open', req)
File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
result = func(*args)
File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.6/urllib2.py", line 1136, in do_open
raise URLError(err)
urllib2.URLError: <urlopen error [Errno 110] Connection timed out>
>>> response = urllib2.urlopen("http://search.twitter.com/search.atom?q=hello&rpp=10&page=1")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/urllib2.py", line 126, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.6/urllib2.py", line 391, in open
response = self._open(req, data)
File "/usr/lib/python2.6/urllib2.py", line 409, in _open
'_open', req)
File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
result = func(*args)
File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.6/urllib2.py", line 1136, in do_open
raise URLError(err)
urllib2.URLError: <urlopen error [Errno 110] Connection timed out>
ATUALIZAÇÃO:
$ ping google.com
PING google.com (72.14.234.104) 56(84) bytes of data.
64 bytes from google.com (72.14.234.104): icmp_seq=1 ttl=54 time=25.3 ms
64 bytes from google.com (72.14.234.104): icmp_seq=2 ttl=54 time=24.6 ms
64 bytes from google.com (72.14.234.104): icmp_seq=3 ttl=54 time=25.1 ms
64 bytes from google.com (72.14.234.104): icmp_seq=4 ttl=54 time=25.0 ms
64 bytes from google.com (72.14.234.104): icmp_seq=5 ttl=54 time=23.9 ms
^C
--- google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4003ms
rtt min/avg/max/mdev = 23.959/24.832/25.365/0.535 ms
$ w3m http://www.google.com
w3m: Can't load http://www.google.com.
$ telnet google.com 80
Trying 1.0.0.0...
telnet: Unable to connect to remote host: Connection timed out
UPDATE 2:
Estou em casa e estou usando um roteador e um ponto de acesso: -. No entanto, notei que o Firefox não funciona para mim. Mas chrome, synaptic, etc funciona.
UPDATE 3:
>>> useragent = 'Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Ubuntu/10.04 Chromium/6.0.472.62 Chrome/6.0.472.62 Safari/534.3)'
>>> request = urllib2.Request('http://www.google.com/')
>>> request.add_header('User-agent', useragent )
>>> urllib2.urlopen(request)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/urllib2.py", line 126, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.6/urllib2.py", line 391, in open
response = self._open(req, data)
File "/usr/lib/python2.6/urllib2.py", line 409, in _open
'_open', req)
File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
result = func(*args)
File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.6/urllib2.py", line 1136, in do_open
raise URLError(err)
urllib2.URLError: <urlopen error [Errno 110] Connection timed out>
um teste que você pode tentar primeiro é isolar a rede.
Acenda python -m SimpleHTTPServer , ele cria um servidor da Web simples no diretório atual, atendendo na porta 8000.
Então você pode testar:
>>> import urllib2
>>> response = urllib2.urlopen("http://localhost:8000")
>>> response.msg
'OK'
Isso permitirá que você saiba se seu problema está em python, ou se você está tendo problemas de rede (o que eu suspeito ser o caso).