Python: Query given WMI class on Windows host from Linux and output to easy-to-read JSON

gistfile1.py

#!/usr/bin/env python

from optparse import OptionParser
from subprocess import Popen, PIPE

# Requires wmic from Samba project, or here:
# http://dev.zenoss.org/trac/browser/tags/zenoss-3.2.1/inst/externallibs
wmic = '/vagrant/wmic'

parser = OptionParser()
parser.add_option("-s", "--server", dest="host", action="store",
                  help="Windows Server to query" )
parser.add_option("-c", "--class", dest="winclass", action="store",
  	          help="WMI class")
parser.add_option("-u", "--username", dest="user", action="store",
                  help="Administrative user name")
parser.add_option("-p", "--password", dest="passwd", action="store",
                  help="Password")
(options, args) = parser.parse_args()

if options.host is None:
    print "Please specify a target server with -server or -s"
    parser.print_help()
    exit(-1)

if options.winclass is None:
    print "Please specify a WMI class with --class or -c"
    parser.print_help()
    exit(-1)

if options.user is None:
    user = 'Administrator'
else:
    user = options.user

if options.passwd is None:
    passwd = 'password'
else:
    passwd = options.passwd

def wmi_query( host ):
    "Query a given host with wmic"

    query = "'SELECT * FROM %s'" % options.winclass

    cmd = wmic + " --delimiter=^ -U " + user + "%" + passwd + " //" + host + " " + query

    process = Popen(cmd, shell=True, stderr=PIPE, stdout=PIPE )
    (out, derr) = process.communicate()

    if process.returncode is not 0:
        print "Something went wrong with host:" + host
        print derr
        return None

    lines = out.split('\n')

    junk = lines.index('CLASS: %s' % options.winclass)

    # Get rid of the junk. Should be left with Keys and the rest are values
    del lines[0:junk+1]

    keys = lines[0].split('^')
    del lines[0]

    ind = 0
    infodict = {}
    for line in lines:
        vals = line.split('^')
        infodict[ind] = dict(zip(keys, vals))

        return infodict

if __name__ == '__main__':
    from json import dumps

    hostinfo = wmi_query( options.host )

    print dumps(hostinfo, sort_keys=True, indent=4)