expand list to function arguments

http://stackoverflow.com/questions/7745952/python-expand-list-to-function-arguments

Note: A list is not expanded as arguments by itself.

def a(b,c):
    print(b)

d = [2,3]
a(d) : Will not work because the given list is not expanded.

a(*d) will work: see https://docs.python.org/2/tutorial/controlflow.html#unpacking-argument-lists