python optparse 长选项 短选项使用

import optparse, os, socket, time

def parse_args():
    usage = """
    python test.py test
"""


    parser = optparse.OptionParser(usage)


    help = "Iplist File"
    parser.add_option("-f","--file", dest='iplistfile',default='iplist.txt',help=help)




    help = "Cmd File"
    parser.add_option("-c","--config", dest='cmdfile',default='config',help=help,metavar="FILE")




    help = "Log File"
    parser.add_option("-o","--output", dest='logfile',default='7z.log',help=help)


    help = "Process Num"
    parser.add_option("-p","--process", type=int,default=20,help=help)
    
    help = "The interface to listen on. Default is localhost."
    parser.add_option('--iface', help=help, default='localhost')   
    
    help = "The number of seconds between sending bytes."
    parser.add_option('--delay', type='float', help=help, default=.1)   
    
    help = "The port to listen on. Default to a random available port."
    parser.add_option('--port', type='int', default=5000,help=help)    
    
    help = "The number of bytes to send at a time."
    parser.add_option('--num-bytes', type='int', help=help, default=10)    


    options, args = parser.parse_args()
    
    if len(args) != 1:
            parser.error('Provide exactly one poetry file.')
    
    poetry_file = args[0]
    
    if not os.path.exists(args[0]):
        parser.error('No such file: %s' % poetry_file)
    
    return options, poetry_file