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#!/usr/bin/env python3

"""Howler"""

import argparse

import os

import sys

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

def get_args():

"""get command-line arguments"""

parser = argparse.ArgumentParser(

description='Howler (upper-cases input)',

formatter_class=argparse.ArgumentDefaultsHelpFormatter)

parser.add_argument('text',

metavar='text',

type=str,

help='Input string or file')

parser.add_argument('-o',

'--outfile',

help='Output filename',

metavar='str',

type=str,

default='')

args = parser.parse_args()

if os.path.isfile(args.text):

args.text = open(args.text).read().rstrip()

return args

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

def main():

"""Make a jazz noise here"""

args = get_args()

out_fh = open(args.outfile, 'wt') if args.outfile else sys.stdout

out_fh.write(args.text.upper() + '\n')

out_fh.close()

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

if __name__ == '__main__':

main()