~/.local/bin/mkpass

mkpass.py

#!/usr/bin/python

import os, sys, random, string

length = int(sys.argv[1]) if len(sys.argv) > 1 else 4

if length < 8:
    with open('/usr/share/dict/words', 'r') as f:
        choice_list = [l.strip() for l in f.readlines()]
    ch = ' '
else:
    choice_list = string.ascii_letters + string.digits + '!@#$%^&*()'
    ch = ''

random.seed = (os.urandom(1024))
print ch.join(random.choice(choice_list) for i in range(length))