当我想从URL
中读取时，我遇到了Python 3的问题URL="http://"+USER+":"+PASSWORD+"@127.0.0.1:"+PORT+"/manager/status?XML=true"
RURL=urllib.request.urlopen(URL)
XML=RURL.read()
RURL.close()
在较旧的Python版本中，以下工作正常：
URL="http://"+USER+":"+PASSWORD+"@127.0.0.1:"+PORT+"/manager/status?XML=true"
RURL=urllib.urlopen(URL)
XML=RURL.read()
RURL.close()
现在，当我运行脚本时，我得到以下内容：
Traceback (most recent call last):
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 1248, in do_open
h.request(req.get_method(), req.selector, req.data, headers)
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 1061, in request
self._send_request(method, url, body, headers)
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 1099, in _send_request
self.endheaders(body)
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 1057, in endheaders
self._send_output(message_body)
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 902, in _send_output
self.send(msg)
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 840, in send
self.connect()
File "/opt/rh/python33/root/usr/lib64/python3.3/http/client.py", line 818, in connect
self.timeout, self.source_address)
File "/opt/rh/python33/root/usr/lib64/python3.3/socket.py", line 417, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
socket.gaierror: [Errno -2] Name or service not known
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "./Tomcatxml.py", line 15, in <module>
RURL=urllib.request.urlopen(URL)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 156, in urlopen
return opener.open(url, data, timeout)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 469, in open
response = self._open(req, data)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 487, in _open
'_open', req)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 447, in _call_chain
result = func(*args)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 1268, in http_open
return self.do_open(http.client.HTTPConnection, req)
File "/opt/rh/python33/root/usr/lib64/python3.3/urllib/request.py", line 1251, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno -2] Name or service not known>