The Python cli API throws a NameError.

Import the cli module into the global namespace.

>>> cli('show clock')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'cli' is not defined

>>> from cli import *
>>> cli('show clock')
'20:23:33.967 UTC Fri Nov 01 2013\n'

The Python clid API throws a structured_output_not_supported_error.

Use the cli or clip API. The clid API works only with commands that support structured data output.

>>> clid('show clock')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/isan/python/scripts/cli.py", line 45, in clid
    raise structured_output_not_supported_error(cmd)
errors.structured_output_not_supported_error: 'show clock'

The cli API and cisco objects throw a Permission denied error.

Make sure your login ID has sufficient permissions to access the command or resource. If necessary, ask your network administrator for additional permissions.

>>> from cli import *
>>> cli('clear counters')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/isan/python/scripts/cli.py", line 20, in cli
    raise cmd_exec_error(msg)
errors.cmd_exec_error: '% Permission denied for the role\n\nCmd exec error.\n'
>>> from cisco.interface import *
>>> i=Interface('Ethernet3/2')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/isan/python/scripts/cisco/interface.py", line 75, in __new__
    cls._Interfaces[name].config(True)
  File "/isan/python/scripts/cisco/interface.py", line 91, in config
    s, o = nxcli('show runn interface %s' % self.name)
  File "/isan/python/scripts/cisco/nxcli.py", line 46, in nxcli
    raise SyntaxError, 'Error status %d\n%s' % (status, output)
SyntaxError: Error status 30
% Permission denied for the role

Cmd exec error.

>>> import os
>>> os.system('whoami')
test

The urllib2 or socket connection is not processed.

Make sure you are using the correct virtual routing context. If not, switch to the correct one.

>>> import urllib2
>>> u=urllib2('http://172.23.40.211:8000/welcome.html')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'module' object is not callable
>>> u=urllib2.urlopen('http://172.23.40.211:8000/welcome.html')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/isan/python/python2.7/urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "/isan/python/python2.7/urllib2.py", line 404, in open
    response = self._open(req, data)
  File "/isan/python/python2.7/urllib2.py", line 422, in _open
    '_open', req)
  File "/isan/python/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/isan/python/python2.7/urllib2.py", line 1214, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/isan/python/python2.7/urllib2.py", line 1184, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno 113] No route to host>
>>> from cisco.vrf import *
>>> VRF.get_vrf_name_by_id(get_global_vrf())
'default'