class FoodExpert:
def init(self):
self.goodFood = []
def addGoodFood(self, food):
self.goodFood.append(food)
def likes(self, x):
return x in self.goodFood
def prefers(self, x, y):
x_rating = self.goodFood.index(x)
y_rating = self.goodFood.index(y)
if x_rating > y_rating:
return y
else:
return x
f = FoodExpert()
f.init()
map(f.addGoodFood, ['A', 'B', 'C', 'D', 'E'])
print f.goodFood
menu = ['a', 'b', 'c']
rec = filter(f.likes, menu)
print rec