Python初学者寻求代码评审与优化指导

迭代需求 #

• V1.0：实现从各商店选一件商品并移除库存，最后打印已购商品
• V1.2：增加退出商店功能、金币支付与余额展示
• V1.4：修复BUG、代码重构
• V1.5：合并所有商店库存并打印采购前后的库存

自写代码 #

我是Python初学者，为测试自身现有水平，未参考任何资料编写了以下代码：

freelancers = {'name': 'freelancing Shop','brian': 70, 'black knight': 20, 'biccus diccus': 100, 'grim reaper': 500, 'minstrel': -15}
antiques = {'name': 'Antique Shop','french castle': 400, 'wooden grail': 3, 'scythe': 150, 'catapult': 75, 'german joke': 5}
pet_shop = {'name': 'Pet Shop','blue parrot': 10, 'white rabbit': 5, 'newt': 2}

all_stores = {}
cart_total = 1
cart = 'Items you\'ve purchased: '
stores_lst = {'freelancers':'', 'antiques':'', 'pet_shop':''}
for stores in (freelancers, antiques, pet_shop): all_stores.update(stores)
while cart_total <= 3:
    store = input(f'What store are you visiting?: {stores_lst.keys()}')
    if store == 'freelancers':
        item1 = input('What would you like from this store?: ' + str(sorted(freelancers)))
        all_stores.pop(item1)
        freelancers.pop(item1)
        cart = cart + " " + item1
        cart_total += 1
        del stores_lst['freelancers']
    elif store.lower() == 'antiques':
        item2 = input('What would you like from this store?: ' + str(sorted(antiques)))
        all_stores.pop(item2)
        antiques.pop(item2)
        cart = cart + " " + item2
        cart_total += 1
        del stores_lst['antiques']
    else:
        item3 = input('What would you like from this store?: ' + str(sorted(pet_shop)))
        all_stores.pop(item3)
        pet_shop.pop(item3)
        cart = cart + " " + item3
        cart_total += 1
        del stores_lst['pet_shop']
print(cart)
print(all_stores)

诉求 #

现寻求资深开发者对代码进行评审，提供改进建议与更优实现方案，帮助提升编程技能。

内容的提问来源于stack exchange，提问作者gem's_dad