simple python map and reduce

python_map_reduce

class Person:
  def __init__(self, name, age):
		self.name = name
		self.age = age

people = []
people.append(Person("Steve", 43))
people.append(Person("Tyler", 8))

print map(lambda x: x.age, people) # [43,8]
print reduce(lambda x, y: x+y.age, people, 0) # 51 

print filter(lambda x: x.age > 10, people)