PYTHON 获取机器硬件信息及状态

#!/usr/bin/env python
# encoding: utf-8

from optparse import OptionParser
import os
import re
import json

def main():
    try:
        parser = OptionParser(usage="%prog [options]")
        reg_result=re.compile('\[(.*)\]')
        #add option
        parser.add_option("-m","--machine",action="store",type="string",dest="machine",help="the machine to be check")
        parser.add_option("-f","--file",action="store",type="string",dest="file",help="the file with machine list")
        parser.add_option("-n","--noah_path",action="store",type="string",dest="noah",help="the bns path or group")
        (options,args)=parser.parse_args()

        result=""
        if options.machine:
            options.machine=options.machine.replace(".baidu.com","")
            result=os.popen("meta-query entity host "+options.machine+" -f sysSuit,memTotal,diskTotal,cpuFrequency,cpuPhysicalCores,netIdc,status -j").read()
        elif options.file:
            result=os.popen("meta-query entity host  -f sysSuit,memTotal,diskTotal,cpuFrequency,cpuPhysicalCores,netIdc,status -F "+options.file+" -j").read()
        elif options.noah:
            result=os.popen("get_instance_by_service "+options.noah+" |meta-query entity host  -f sysSuit,memTotal,diskTotal,cpuFrequency,cpuPhysicalCores,netIdc,status -F  -j").read()
        else:
            return

        result=json.loads(result)
        print "%-*s%-*s%-*s%-*s%-*s%-*s"%(40,"Name",10,"CPU",10,"memery",10,"disk",10,"IDC",10,"status")
        for item in result:
            if item['Values']['cpuFrequency']!="null":
                item['Values']['cpuFrequency']=str(float(item['Values']['cpuFrequency'])/1000.0)[0:3]
            else:
                item["
            item['Values']['diskTotal']=str(float(item['Values']['diskTotal'])/1000000000.0)[0:5]
            item['Values']['memTotal']=str(float(item['Values']['memTotal'])/1024/1000.0)[0:5]

            print "%-*s%-*s%-*s%-*s%-*s%-*s" % (40,item['Name'],10,item['Values']['cpuFrequency']+" x"+item['Values']['cpuPhysicalCores'],10,item['Values']['memTotal']+"G",10,item['Values']['diskTotal']+"T",10,item['Values']['netIdc'],10,item['Values']['status'])
    except Exception,e:
        return

if __name__ =="__main__":
    main()