password generator

passgen.py

from string import digits, ascii_letters
from random import choice
from sys import argv

def generator(length):
    chac = digits + ascii_letters
    pwd = list()
    for p in range(length):
        pwd.append(choice(chac))
    print("".join(pwd))

def main():
    try:
        args = argv[1] #Terminal argument
        #Run!! And don't forget to add the password lenght
        generator(int(args))
    except IndexError:
        generator(12)



if __name__ == '__main__' : main()