versus scrubber

scrub.py

def scrub(data):
    if type(data) is list:
        return scrub_list(data)
    elif type(data) is dict:
        return scrub_obj(data)
    else:
        return data

def scrub_list(data):
    new_list = []
    for x in data:
        new_list.append(scrub(x))
    return new_list

def scrub_obj(data):
    obj = {}
    for key in data:
        if is_concealable(key):
            obj[key] = conceal(data[key])
        else:
            obj[key] = scrub(data[key])
    return obj

def conceal(arg):
    if "@" in arg:
        return conceal_email(arg)
    return "*****"

def conceal_email(email):
    [name, domain] = email.split("@")
    return "*****@" + domain

def is_concealable(key):
    if key == "name":
        return True
    if key == "email":
        return True
    if key == "username":
        return True
    if key == "password":
        return True
    return False