result = book1.deducting_inventory(qty)
elif choice == 2:
qty = int(input("How many would you like to remove?"))
result = book2.deducting_inventory(qty)
if result == 0:
print("The quantity is now 1" + ' ' + str(book1.quantity) +
"\n\n")
else:
print("You do not have enough to remove from inventory!")
elif menu_choice == 3:
print("Book 1 or 2?")
choice = int(input())
if choice == 1:
price = float(input("What would you like the new price to be?"))
book1.price = price
print("The price has been changed to" + ' ' + str(book1.price) +
"\n\n")
elif choice == 2:
price = float(input("What would you like the new price to be?"))
book2.price = price
print("The price has been changed to" + ' ' + str(book2.price) +
"\n\n")
elif menu_choice == 4:
print("Book 1 or 2?")
choice = int(input())
if choice == 1:
year = int(
input(
"What year would you like to change it to, can be past or future."
menu_choice = int(input("> "))
if menu_choice == 1:
print("You chose to add inventory")
addition = input("How many books did we add: ")
textbook_1.add_inventory(addition)
print(textbook_1.quantity_in_inventory)
elif menu_choice == 2:
print("You chose to decrease inventory")
lose = input("How many books did we sell: ")
textbook_1.decrease_inventory(lose)
print(textbook_1.quantity_in_inventory)
elif menu_choice == 3:
print("You chose to change the price")
print(f"The current price is: ${textbook_1.price}")
textbook_1.price = float(input("The price is now: $"))
elif menu_choice == 4:
print("You chose to leave this book as it is.")
else:
print("Invalid choice")
elif book_choice == 2:
while menu_choice != 4:
print("Please chose the number to indicate which option you would like to choose")
print("1. Add inventory")
print("2. Decrease inventory")
print("3. Change price")
print("4. Leave everything how it is")
menu_choice = int(input("> "))
if menu_choice == 1:
