B8 - argparse

import argparse

parser = argparse.ArgumentParser(description="Meow like a cat")
parser.add_argument("-n", default=1, help="number of times to meow", type=int)
args = parser.parse_args()

for _ in range(args.n):
    print("meow")

• argparse library handles the parsing of complicated strings from command-line arguments
• parser is an object from an ArgumentParser class
• add_argument method tells what arguments should be expected when the user runs the program
• parse_args method ensures that all the arguments have been included by the user
• the bracketed terms provide user with more documentation