Password Generator (with human friendly characters)

password_generator.py

def password_generator(length=8):
    from random import choice
    from string import letters, digits

    doppelgangers = set('io10szSZOIl25uvUV')
    alphanums = set(letters+digits)
    chars = list(doppelgangers - alphanums)

    return ''.join([choice(chars) for i in range(length)])