2021-csci-ga3205-hw-09/index.py

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import argparse
from pathlib import Path
def encrypt(file):
sal = 'hello encryption'
return sal
def decrypt(file):
greet = 'hello decryption'
return greet
def main():
parser = argparse.ArgumentParser()
parser.add_argument('-f', '--file', type=open)
parser.add_argument('modality', choices=['encrypt', 'decrypt'])
args = parser.parse_args()
if args.modality == 'encrypt':
print(encrypt(args.file))
elif args.modality == 'decrypt':
print(decrypt(args.file))
if __name__ == '__main__':
main()