def dispalyProgress(total_files):
for i in range(total_files):
print(f"Downloading file {i} out of {total_files}.")
dispalyProgress(4)
def halvePrices(cart):
for price in cart:
print(f"New price: {price/2}")
cart_list = [5, 20, 8]
halvePrices(cart_list)