python 3 the hard way lesson 18 functions

#Exercise 18: Names, Variables, Code, Functions
#http://learnpythonthehardway.org/book/ex18.html

#this one is like argv
def print_two (*args):# never seen * args!
    arg1, arg2 =args
    print ("arg1: {}, arg2: {}".format(arg1, arg2))

#ok, that *args is pointless, we can just do
def print_two_again(arg1,arg2):
    print ("arg1: {}, arg2 {}".format(arg1,arg2))

#this one takes just one argument
def print_one(arg1):
    print ("arg1: {}".format(arg1))

#this takes no arguments
def print_none():
    print ("I got nuthin!")

#Now call the functions by naming them and supplying arguments
print_two("D","GD")
print_two_again("me","I")
print_one("first")
print_none()