Function Pipelines with persistent State (FPS) - FPS programming

winebottle.py

class WineBottle(object):
    def __init__(self):
        self.wine = 100
        self.max_capacity = 500
        self.make = "Plastic"

    def add_wine(self, amount):
        if self.max_capacity < self.wine + amount:
            self.wine = self.max_capacity
            print "OverFlow"
        else:
            self.wine += amount
            print self.wine

    def drink_wine(self, amount):
        if amount > self.wine:
            self.wine = 0
            print "Finish"
        else:
            self.wine -= amount
            print self.wine