Shell Safe API Key / Password generator

apikeygen.py

#!/usr/bin/env python
"""
apikeygen.py

Generate a shell safe API key (or password)

Generated string should not have any characters that need to be escaped in
the shell. The following characters have special meaning in some shell contexts

    ! # $ ' ( ) * , ; . < = > ? [ ] ^ { } | ~ - . : \

Arguments:
    -l --length length of the API key to be generated. Default is 32.
    -s --source a string of characters to use

Revision:
    2020-05-19: Initial revision

Reference:
    https://unix.stackexchange.com/a/357932
"""

import random


def apikeygen(length, source):
    return ''.join(random.sample(source, length))


if __name__ == '__main__':
    import argparse
    import string
    source = string.ascii_lowercase\
        + string.ascii_uppercase\
        + string.digits\
        + '@%_/+'
    dirty = '@%'
    parser = argparse.ArgumentParser()
    parser.add_argument(
        '-l',
        '--length',
        type=int,
        help='length of the API key to be generated.',
        default=32)
    parser.add_argument(
        '-s',
        '--source',
        help='a string of characters to use.',
        default=source)
    parser.add_argument(
        '-c',
        '--clickable',
        help='make the string clickable.',
        action='store_true',
        default=source)
    args = parser.parse_args()
    source = args.source
    if args.clickable:
        source = ''.join([c for c in source if c not in dirty])
    print(apikeygen(args.length, source))