Parsing of IPv6 proxies is broken in urllib

[Ante Karamatić]

When IPv6 proxies are used, urllib in 14.04 won't work always. Example with 'neutron net-list':

⟫ neutron --debug net-list
DEBUG: neutronclient.neutron.v2_0.network.ListNetwork get_data(Namespace(columns=[], fields=[], formatter='table', page_size=None, quote_mode='nonnumeric', request_format='json', show_details=False, sort_dir=[], sort_key=[]))
DEBUG: neutronclient.client
REQ: curl -i http://192.168.0.1:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "test", "passwordCredentials": {"username": "test", "password": "test"}}}'

DEBUG: neutronclient.client throwing ConnectionFailed : invalid literal for int() with base 10: 'ea2a:eaff:fe39:a800]:8080'
ERROR: neutronclient.shell Connection to neutron failed: invalid literal for int() with base 10: 'ea2a:eaff:fe39:a800]:8080'
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.7/dist-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.7/dist-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.7/dist-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 610, in get_data
    data = self.retrieve_list(parsed_args)
  File "/usr/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 556, in retrieve_list
    neutron_client = self.get_client()
  File "/usr/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.7/dist-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.7/dist-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.7/dist-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.7/dist-packages/neutronclient/client.py", line 239, in authenticate
    content_type="application/json")
  File "/usr/lib/python2.7/dist-packages/neutronclient/client.py", line 154, in _cs_request
    raise exceptions.ConnectionFailed(reason=e)
ConnectionFailed: Connection to neutron failed: invalid literal for int() with base 10: 'ea2a:eaff:fe39:a800]:8080'
DEBUG: neutronclient.shell clean_up ListNetwork
DEBUG: neutronclient.shell Got an error: Connection to neutron failed: invalid literal for int() with base 10: 'ea2a:eaff:fe39:a800]:8080'

This has been fixed with urllib 1.11:

https://github.com/shazow/urllib3/pull/668/files