python argparse 模块的功能是对命令行进行解析，检查命令行是否符合预定义的格式。
使用方法：
1、导入argparse模块 import argparse
2、创建argparse对象 parser = argparse.ArgumentParser()
3、添加命令行相关参数、选项 parser.add_argument("...")
4、解析 parser.parse_args()
例一：(删除指定的zabbix screen)
#!/usr/bin/env python2.7
#coding=utf-8
import sys
import argparse
import zabbixAuth
import zabbixScreen
if __name__ == "__main__":
#if len(sys.argv) < 2 :
# print "usage:",sys.argv[0],"screenName"
# sys.exit(1)
#if sys.argv[1] == "-h" or sys.argv[1] == "--help":
# print "usage:",sys.argv[0],"screenName"
# sys.exit()
#以下三行的功能等效于以上的if 语句
parser = argparse.ArgumentParser() #创建argparse对象
parser.add_argument("screenName",help="Specifies the screen name of the is will be deleted")
parser.parse_args()
userAuth=zabbixAuth.zabbix_auth()
token=userAuth.user_login()
screenObj=zabbixScreen.zabbix_screen()
screenidList=screenObj.screen_get(token,sys.argv[1])
if screenidList != None:
print "screenID:",screenObj.screen_delete(token,screenidList[0]),"delete success"
else:
print "The screen:",sys.argv[1],"does not exists"
例二：(创建自定义的zabbix screen)
#!/usr/bin/env python2.7
#coding=utf-8
import sys
import argparse
import zabbixAuth
import zabbixScreen
if __name__ == "__main__":
#if len(sys.argv) < 4 :
# print "usage:",sys.argv[0],"screenName rows columns"
# sys.exit(1)
#if sys.argv[1] == "-h" or sys.argv[1] == "--help":
# print "usage:",sys.argv[0],"screenName rows columns"
# sys.exit()
#if sys.argv[2].isdigit()==False or sys.argv[3].isdigit()==False:
# print "Note: rows and columns is number"
# sys.exit()
#以上注释的if 语句等效于以下5行
parser = argparse.ArgumentParser()
parser.add_argument("screenName",help="Given a string to set the screen name")
parser.add_argument("rows",help="Given a number to set the lines",type=int)
parser.add_argument("columns",help="Given a number to set the columns",type=int)
parser.parse_args()
if int(sys.argv[3])>3 :
print "Note: columns must be less than 3"
sys.exit()
userAuth=zabbixAuth.zabbix_auth()
token=userAuth.user_login()
screenObj=zabbixScreen.zabbix_screen()
screenidList=screenObj.screen_get(token,sys.argv[1])
if screenidList != None:
print "screen already exists"
else:
print "screnn",sys.argv[1],"create success, screenid is",screenObj.screen_create(token,sys.argv[2],sys.argv[3],sys.argv[1])