On Wed, Sep 11, 2013 at 5:40 AM, zubair alam <zubair.alam....@gmail.com>wrote:
> i am learning how a __class__ data member behaves in python as compared to > static data member in java, but following code is throwing error > > > class PizzaShop(): > pizza_stock = 10 > def get_pizza(self): > while not PizzaShop.pizza_stock: > PizzaShop.pizza_stock -= 1 > yield "take yours pizza order, total pizzas left > {}".format(PizzaShop.pizza_stock) > > mypizza_shop = PizzaShop() > pizza_order = mypizza_shop.get_pizza() # iterator is obtained > print "a pizza pls!! {}:".format(pizza_order.next()) > print "a pizza pls!! {}:".format(pizza_order.next()) > > output: > Traceback (most recent call last): > File "/home/scott/pythonfiles/core_python/pizza.py", line 10, in <module> > print "a pizza pls!! {}:".format(pizza_order.next()) > StopIteration > > > don't know where i am doing mistake....any help will be appreciated... i > have other questions on based on this class > > Change "while not PizzaShop.pizza_stock:" to "while PizzaShop.pizza_stock:"; I get the following output: > a pizza pls!! take yours pizza order, total pizzas left 9: > a pizza pls!! take yours pizza order, total pizzas left 8: >
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