23. Working with Dictionaries and while Loops

coffee_list = {"Peter": 0, 
               "Eva": 0, 
               "Franka": 0}

while True:
    name = input("Name: ")
    if name == "":
        break
    coffee_list[name] += 1
    print(coffee_list[name])
    
print("coffee list: ", coffee_list)

coffee_list = {"Peter": 0, 
               "Eva": 0, 
               "Franka": 0}
tea_list = {"Peter": 0, 
            "Eva": 0, 
            "Franka": 0}

while True:
    name = input("Name: ")
    if name == "":
        break
    getränk = input("Beverage (coffee/tea): ")
    if getränk.lower() == "coffee":
        coffee_list[name] += 1
        print(coffee_list[name])
    elif getränk.lower() == "tea":
        tea_list[name] += 1
        print(tea_list[name])
        
print("coffee list: ", coffee_list)
print("tea list: ", tea_list)

list_of_beverages = {"Peter": {"tea": 0, 
                           "coffee": 0}, 
                 "Eva": {"tea": 0, 
                         "coffee": 0}, 
                 "Franka": {"tea": 0, 
                            "coffee": 0}}

while True:
    name = input("Name: ").capitalize()
    if name == "":
        break
    if name not in list_of_beverages:   
        antwort = input("Shall we include " + name + " in the list? (y/n)")
        if antwort.lower() in ["y", "yes"]:
            list_of_beverages[name] = {"tea": 0, "coffee": 0}
        else:
            print(name + " cannot have a drink!")
            continue
    drink = input("Beverage (coffee/tea): ")
    list_of_beverages[name][drink] += 1
print(list_of_beverages)

supermarket = {"milk": {"quantity": 20, "price": 1.19},
               "biscuits":  {"quantity": 32, "price": 1.45},
               "butter":  {"quantity": 20, "price": 2.29},
               "cheese":  {"quantity": 15, "price": 1.90},
               "bread":  {"quantity": 15, "price": 2.59},
               "cookies":  {"quantity": 20, "price": 4.99},
               "yogurt": {"quantity": 18, "price": 3.65},
               "apples":  {"quantity": 35, "price": 3.15},
               "oranges":  {"quantity": 40, "price": 0.99},
               "bananas": {"quantity": 23, "price": 1.29}}

total_value = 0
for article, numbers in supermarket.items():
    quantity = numbers["quantity"]
    price = numbers["price"]
    product_price = quantity * price
    article = article + ':'
    print(f"{article:15s} {product_price:08.2f}")
    total_value += product_price
print("="*24)   
print(f"Total sum:      {total_value:08.2f}")