OptParse is a module introduced in Python2.3 that makes it easy to write command line tools. See "Option parsing tools" for others.

You give a description of the options that the program can receive, and OptParse will do reasonable stuff for you.

For example:

   1 import optparse
   2 
   3 if __name__=="__main__":
   4     parser = optparse.OptionParser("usage: %prog [options] arg1 arg2")
   5     parser.add_option("-H", "--host", dest="hostname",
   6                       default="127.0.0.1", type="string",
   7                       help="specify hostname to run on")
   8     parser.add_option("-p", "--port", dest="portnum", default=80,
   9                       type="int", help="port number to run on")
  10 
  11     (options, args) = parser.parse_args()
  12     if len(args) != 2:
  13         parser.error("incorrect number of arguments")
  14     hostname = options.hostname
  15     portnum = options.portnum

args contains your fixed arguments, options contains your values.

For example, options.portnum would contain the integer 80, in the example above.

References

Complaints

OptParse (last edited 2008-11-15 14:00:06 by localhost)

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