factory function implemented with nested scope

nestedscopy.py

def maker(N):
	'''
	if you want to get different functions
	when you pass different parameters into a maker,
	you can use nested scope function, 
	it's also known as a factory function.
	'''
	def action(X):
		return X**N
	return action

f = maker(2)
f(3)	#print 9
f = maker(3)
f(3)	#print 27