#!/usr/bin/env python3

"""Lookup tables"""

import argparse

# --------------------------------------------------

def get_args():

"""get command-line arguments"""

parser = argparse.ArgumentParser(

description='Gashlycrumb',

formatter_class=argparse.ArgumentDefaultsHelpFormatter)

parser.add_argument('letter',

help='Letter(s)',

metavar='letter',

nargs='+',

type=str)

parser.add_argument('-f',

'--file',

help='Input file',

metavar='FILE',

type=argparse.FileType('r'),

default='gashlycrumb.txt')

return parser.parse_args()

# --------------------------------------------------

def main():

"""Make a jazz noise here"""

args = get_args()

lookup = {line[0].upper(): line.rstrip() for line in args.file}

for letter in args.letter:

if letter.upper() in lookup:

print(lookup[letter.upper()])

else:

print(f'I do not know "{letter}".')

# --------------------------------------------------

if __name__ == '__main__':

main()