def greet(event: str):
    """Greets appropriately (from http://blog.ketchum.com/how-to-write-10-common-holiday-greetings/)  """
    greetings = "Happy"
    if event == "Christmas":
        greetings = "Merry"
    if event == "Kwanzaa":
        greetings = "Joyous"
    if event == "wishes":
        greetings = "Warm"

    return "{greetings} {event}!".format(**locals())
Greets appropriately (from http://blog.ketchum.com/how-to-write-10-common-holiday-greetings/)