Python Script Template, copy useful parts.

pstemplate.py

#!/usr/bin/env python

import argparse
import os

DIR = os.path.realpath(__file__)

parser = argparse.ArgumentParser(description='Send files to web server')
parser.add_argument('-n', '--nochange',
    help='make a dry run, don\'t send anything',
    action='store_const',
    const='n',
    default='')
args = parser.parse_args()

os.chdir(DIR)