new command challenge

"""
    Adding a new command to this bot which do the following:
    include the shopping list creator into your bot
    add up the cost of your shopping
    calculate a discount
    divide the cost of a meal in a restaurant
"""
shopping=[]
cost=[]
how_many_items=int(input("Add number of items in your cart "))

for item in range(how_many_items):
    items=input("Add items: ")
    item_cost=int(input("Cost per item "+str(item)+": "))
    item+=1
    shopping.append(items)
    cost.append(item_cost)
print("The following is the list of items added in the shopping cart: ")
for element in shopping:
    print(element)
print("Here are the costs for each item in the cart: ")
for something in cost:
    print(something)
shopping_cost=0
index=0
for charge in cost:
    shopping_cost=shopping_cost+cost[index]
    index+=1
    discount=0.20
    if shopping_cost>=1000:
        result=discount*shopping_cost
    else:
        pass
print("We give you a 20 % discount",result)
print("Your items costs",shopping_cost,"then you have to pay",shopping_cost-result)