Generate random string in Python

genrate_random_string.py

import string

from random import choice

def generate_random_string(n, lowercase=True, uppercase=True, digits=True, punctuation=True):
    assert lowercase or uppercase or digits or punctuation, 'One of boolean params must be True'

    seq = ''.join([
        string.ascii_lowercase if lowercase else '',
        string.ascii_uppercase if uppercase else '',
        string.digits if digits else '',
        string.punctuation if punctuation else '',
    ])
    return ''.join(choice(seq) for _ in range(n))