# Exercise 1
# 1. Getting help with -help or -h.
# 2. A least three arguments that are flags, meaning they don’t take an extra
#    argument but simply putting them on the command line turns something on.
# 3. At least three arguments that are options, meaning they do take an
#    argument and set a variable in your script to that option.
# 4. Additional “positional” arguments, which are lists of files at the end of
#    all the – style arguments and can handle Terminal wildcards like */.txt.

import argparse

parser = argparse.ArgumentParser()
parser.add_argument('filename')
parser.add_argument('-o1', '--opt1')
parser.add_argument('-o2', '--opt2')
parser.add_argument('-o3', '--opt3')
parser.add_argument('-f1', '--flag1', action='store_true')
parser.add_argument('-f2', '--flag2', action='store_true')
parser.add_argument('-f3', '--flag3', action='store_true')
args = parser.parse_args()
print(args)