如何根据用户输入打印出 output

Question

def take_order():
    list_of_drinks = ["coffee", "tea", "coca-cola"]

    user_required_items = []
    orders = int(input("how many types of drink will u be ordering? "))

    total_cost = 0

    for i in range(orders):
        drink = input("Please enter a drink:")
        drink = drink.capitalize()
        user_required_items.append(drink)
        qnt = int(input("Quantity:"))
        user_required_items.append(qnt)
        price1 = 0
        price2 = 0
        price3 = 0
        drink = drink.lower()
        if drink == "coffee":
            price1 = item["Coffee"]*qnt
        elif drink == "tea":
            price2 = item["Tea"]*qnt
        else:
            price3 = item["Coca-cola"]*qnt

        total_cost += price1+price2+price3
        print()
        print('Receipt')
        print('==============================')
        print(f'{"Drink":5s}:               {drink:>1s}')
        print(f'{"Quantity":8s}:{qnt:>13}')

    return total_cost

How can i print out the drinks and quantity based on what the user enter at orders?

This code is workable full code link: https://paste.pythondiscord.com/ifokevahax.py

Answer 1

Frankly, I don't understand what is your problem. Loop works and ask for next drink and it displays drink.

But if you want to first get all drinks and later display all drinks then you should create separated loops for this - first only to get drinks, second only to display drinks.

Something like this.

BTW: I added few other changes.

menu = {
    'coffee':    {'name': 'Coffee',    'price': 4.00},
    'tea':       {'name': 'Tea',       'price': 3.00},
    'coca-cola': {'name': 'Coca-Cola', 'price': 2.00},
}

names = [item['name'] for item in menu.values()]

longest_name = max(names, key=len)
longest_name_len = len(longest_name)

for key, value in menu.items():
    name  = value['name']
    price = value['price'] 
    print(f"{name:{longest_name_len}} : ${price:.2f}")
    
    
def take_order():
    list_of_drinks = list(menu.keys())

    # --- get all drinks ---
    
    orders = int(input("How many types of drink will u be ordering? "))

    user_required_items = []
    total_cost = 0

    while orders:
        
        drink = input("Please enter a drink:")
        drink = drink.lower()
        
        if drink not in list_of_drinks:
            print('Wrong name.')
            print('Available:', ', '.join(names))
        else:
            orders -= 1
            
            qnt = int(input("Quantity:"))
        
            price = menu[drink]['price'] 
            cost = price * qnt

            user_required_items.append( [drink, qnt, price, cost] )

            total_cost += cost
        
    # --- display all drinks ---
    
    print('Receipt')
    print('==============================')

    for drink, qnt, price, cost in user_required_items:
        print(f'Drink:               {drink}')
        print(f'Quantity:            {qnt} * {price} = {cost}')

    print('==============================')
    print(f'Total:               {total_cost}')
        
    return total_cost #, user_required_items


take_order()