PassGen for student passwords

passgen.py

#!/usr/bin/python
'''
Generates password of random 4-letter word + 4-digit number
'''
from random import randint, \
                   choice
import os
import argparse
import re


def randomwithndigits(length):
    '''
    random digit of length n
    '''
    range_start = 10**(length-1)
    range_end = (10**length)-1
    return randint(range_start, range_end)


def passgen(numberofchoices, lengthofword):
    '''
    Loop to print number of choices
    '''
    WORDFILE = open(os.path.abspath("/usr/share/dict/words")).read()
    WORDLIST = list(re.findall(r'\b\w{%s}\b' % lengthofword, WORDFILE))
    count = 0
    while count < numberofchoices:
        print "{0}{1}".format(choice(WORDLIST).lower(), randomwithndigits(4))
        count += 1


def main():
    '''
    Main Functions
    '''
    parser = argparse.ArgumentParser(description='Generates Student Passwords')
    parser.add_argument('-c', '--count', type=int,
                        help='Generates passwords this many times', default=1)
    parser.add_argument('-l', '--length', type=int,
                        help="Length of word to be used", default=4)
    args = parser.parse_args()
    passgen(args.count, args.length)


if __name__ == "__main__":
    main()