Python脚本扫描给定网段的MAC地址表(python-nmap)

# -*- coding: utf-8 -*-
"""
Created on Sun Nov  4 19:58:51 2018
@author: 小谢
"""
##列出给定网段的主机的MAC地址表
import nmap
import optparse
import time
import csv
def ListMac(hosts):
    nm=nmap.PortScanner()
    nm.scan(hosts)
    targets=[]
    for t in nm.all_hosts():
        if nm[t]['status']['state']=="up":
            mac=nm[t]['addresses']['mac']
            print("ip: %s  mac: %s"%(t,mac))
            targets.append((t,mac))
        else:
            pass
    return targets

def main():
    usage="python %proc -H 192.168.10.10-20"
    parser=optparse.OptionParser(usage)
    parser.add_option('-H',dest='Hosts',type='string',help='target hosts')
    (options,args)=parser.parse_args()
    Hosts=options.Hosts
    if Hosts==None:
        print(parser.usage)
        exit(0)
    else:
        target=ListMac(Hosts)
        try:
            with open("ip.csv","wb") as f:
                csv_writer=csv.writer(f)
                csv_writer.writerow(('IP','MAC'))
                for i in target:
                    csv_writer.writerow(i)
        except Exception,e:
                print("异常对象的类型是:%s"%type(e))
                print("异常对象的内容是：%s"%e)
        finally:
               f.close()
if __name__=='__main__':
    main()