Python command-line argument parsing

Method 1:

Python has a class that can specialize in command-line arguments, first looking at the code:

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

  Parser  = Optionparser (Usage= " %prog [options]  "  )  

 parser.add_option (  " -m  " ,  " --machine   ", Action= store   ", type=  " string   ", Dest="   Machine  , Help="  the machine to be check  "  ) 

(Options,args)=Parser.parse_args ()   if  options.machine:            Print Options.machine

The first line is used to initialize,

-M is the parameter shorthand,-machine is the full parameter store meaning that the parameter is stored as type. Dest to which variable to store, the default is the full parameter name, Help is the content to display when helping

Method 2:

Use the Getopt module to parse

ImportSYSImportgetoptdeftestgetopt ():Try: opts, args= Getopt.getopt (sys.argv[1:],'d:f:h',['days=','files=',' Help'])  exceptgetopt. Getopterror:usage () sys.exit ( )Print(opts)Print(args) forO, ainchopts:ifOinch("- H","--help"): Usage () sys.exit ()elifOinch("- D","--days"): Day=aelifOinch("- F","--files"): Files=aPrint(Day)Print(Files)

See also: http://blog.csdn.net/lwnylslwnyls/article/details/8199454

Python command-line argument parsing