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Python

Posted by Stephen House
Stephen House
1,383 Points

I don't know why the multiplication doesn't work on this....whats wrong here?

here is the code

TICKET_PRICE = 10

tickets_remaining = 100

output how many tickets left

print("There are {} tickets remaining".format(tickets_remaining))

gather user name and assign it to a new variable

name = input("What is your name? ") user_name = name

prompt the user by name and ask how many tickets they want

tickets = input("Hi {} how many tickets do you want? ".format(user_name))

calculate price (number of tickets * price) assign to a variable

price = int(tickets * TICKET_PRICE)

Output the price to the screen

print("The price will be {}".format(price))

it keeps repeating. If I say I want 10 tickets it comes out as 10101010101010101010 instead of the price

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points

Here tickets is a string:

tickets = input("Hi {} how many tickets do you want? ".format(user_name))

The result of multiplying a string by (in this case) 10 will be to repeat the string 10 times.

You should convert the input to an integer to get the correct value

tickets = int(input("Hi {} how many tickets do you want? ".format(user_name)))
Stephen House
Stephen House
1,383 Points

so giving a integer to a string causes it to multiply the string by the integer...I did not know that. Thanks!

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points

You are converting the string * TICKET_PRICE so the result is the same. If you did this however:

price = int(tickets) * TICKET_PRICE

you would be multiplying two numbers

Stephen House
Stephen House
1,383 Points

so doing it in that format does not work because TICKET_PRICE = 10 which is the same as "10" so it is a string and does that repeating thing again.... price = int(tickets) * int(TICKET_PRICE) works but whats different about that vs price = int(tickets * TICKET_PRICE) isn't that essentially the same?