Over the past few months I have developed several patterns in the tools that I develop. 1) I like command line options. 2) I like to be able to run other command line programs and parse the output Code after the break.

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

Created by ${TM_FULLNAME} on ${TM_DATE}.
Copyright (c) ${TM_YEAR} ${TM_ORGANIZATION_NAME}. All rights reserved.

import os
import sys
import getopt
import subprocess

help_message = '''
The help message goes here.

class Usage(Exception):
    def __init__(self, msg):
        self.msg = msg

def main(argv=None):
    if argv is None:
        argv = sys.argv
            opts, args = getopt.getopt(argv[1:], "ho:v", ["help", "output="])
        except getopt.error, msg:
            raise Usage(msg)

        # option processing
        for option, value in opts:
            if option == "-v":
                verbose = True
            if option in ("-h", "--help"):
                raise Usage(help_message)
            if option in ("-o", "--output"):
                output = value

    except Usage, err:
        print >> sys.stderr, sys.argv[0].split("/")[-1] + ": " + str(err.msg)
        print >> sys.stderr, "\t for help use --help"
        return 2

    def renext(next):
        print next

    def main():
        popenargs = []
        result = subprocess.Popen(popenargs, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        while 1:
            print dir(result)
            next = result.stdout.readline()
            if not next:
                print next

if __name__ == "__main__":