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Python

Posted by David Tincau
David Tincau
Courses Plus Student 1,076 Points

Why is my code not displaying raise ValueError

Below, why is this snippit of code not displaying when run? raise ValueError("Sorry, there are only {} tickets available".format(tickets_remaining))

Here is my entire code: TICKET_PRICE = 10

tickets_remaining = 100

while tickets_remaining >= 1: print("There are {} ticket(s) remaining".format(tickets_remaining)) user_name = input("What is your name? ") number_of_tickets = input("Hello, {}, how many tickets would you like? ".format(user_name)) try: number_of_tickets = int(number_of_tickets) if number_of_tickets > tickets_remaining: raise ValueError("Sorry, there are only {} tickets available".format(tickets_remaining)) except ValueError as err: print("That is not a valid input.".format(err)) else: user_price = number_of_tickets * TICKET_PRICE print("{}, your total price for these tickets equals ${}".format(user_name, user_price)) proceed = input("Would you like to proceed? (yes/no) ") if proceed[0].lower() == "y": #TODO: Gather credit card information and process it. print("SOLD!") tickets_remaining -= number_of_tickets else: print("Thank you {}!".format(user_name)) print("Number of tickets have reached {}, we are now sold out.".format(tickets_remaining))

1 Answer

Dorde Krstic
Dorde Krstic
1,775 Points
Dorde Krstic
Dorde Krstic
1,775 Points

This is my code, I completed it yesterday. It works fine so you can see where is your mistake in the code.

SERVICE_CHARGE = 2
TICKET_PRICE = 10
tickets_remaining = 100


def calculate_price(value):
    return (TICKET_PRICE * value) + SERVICE_CHARGE

while tickets_remaining >= 1:
    print("There's only {} tickets left!".format(tickets_remaining))        

    name = input("What is your name? ")
    try:
        tickets = int(input("Hello {}, how many tickets would you like to buy? ".format(name)))
    except ValueError:
        print("You need to enter a number only")
    try:
        while tickets > tickets_remaining: 
            tickets = int(input("You can only buy {} tickets, {}. \nHow many do you want to buy? ".format(tickets_remaining, name)))
        else:
            price = calculate_price(tickets)
            print("Price for {} tickets is ${}. Thank you {}.".format(tickets, price, name))
            yes_no = input("Do you want to proceed. Y/N? ")
            if yes_no.lower() == "y":
                # Gather credit card information and process it.
                print("SOLD! You just bought {} tickets".format(tickets))
                tickets_remaining -= tickets
                if tickets_remaining <= 0:
                    print("Tickets are sold out.")
                    exit()
                else:    
                    print("Tickets left: {}".format(tickets_remaining))        
            else:

                print("Thank you anyways, {}.".format(name))
    except NameError:
        print("")