Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
keith frazier
Python Development Techdegree Student 5,771 PointsDifferent approach to asking number of tickets, very weird result. I fixed it, but I don't understand what was wrong!
Instead of num_tickets etc. etc. I did:
ticket_amount = int(input("Hello {}, how many tickets would you like? ".format(name))) total_cost = TICKET_PRICE * ticket_amount print("{} tickets at ${} each will cost ${}".format(ticket_amount, TICKET_PRICE, total_cost))
When I entered 25 tickets in the console the result calculated was 25252525252525252525 (25 Repeated 10 times) It seems it multiplied the string "25" ten times. So I figured to make total_cost an int out the gate. I wrapped total_cost in an int like so: total_cost = int(TICKET_PRICE * ticket_amount) That didn't help.
Finally I wrapped the constant at the beginning of the script in an int like so: TICKET_PRICE = int(10) This was the solution, but wasn't TICKET_PRICE an int to begin with? Very confused...
keith frazier
Python Development Techdegree Student 5,771 PointsInstead of num_tickets etc. etc. I did:
ticket_amount = int(input("Hello {}, how many tickets would you like? ".format(name)))
total_cost = TICKET_PRICE * ticket_amount print("{} tickets at ${} each will cost ${}".format(ticket_amount, TICKET_PRICE, total_cost))
When I entered 25 tickets in the console the result calculated was 25252525252525252525 (25 Repeated 10 times) It seems it multiplied the string "25" ten times. So I figured to make total_cost an int out the gate. I wrapped total_cost in an int like so:
total_cost = int(TICKET_PRICE * ticket_amount)
That didn't help. Finally I wrapped the constant at the beginning of the script in an int like so:
TICKET_PRICE = int(10)
This was the solution, but wasn't TICKET_PRICE an int to begin with? Very confused..
2 Answers
keith frazier
Python Development Techdegree Student 5,771 PointsOops! I just didn't save it after I fixed the issue. Then I made another change that really did nothing and I thought it was the solution. I'm new to the online console😜, but thanks!
boi
14,241 PointsOk, I think I identified your problem but your code provided here is still confusing and incomplete, anyways.
ticket_amount = int(input("Hello {}, how many tickets would you like? ".format(name)))
total_cost = TICKET_PRICE * ticket_amount
print("{} tickets at ${} each will cost ${}".format(ticket_amount, TICKET_PRICE, total_cost))
The only possible problem according to me is in ticket_amount.
ticket_amount = int(input("Hello {}, how many tickets would you like? ".format(name)))
what I was confused with is that the ticket_amount provided by you is absolutely correct, there is no error in it but if your ticket_amount was missing that int before input then that was incorrect and would give the exact problem you are facing.
ticket_amount = input("Hello {}, how many tickets would you like? ".format(name)
You said that you wrapped your total_cost and TICKET_PRICE with int so it solved your problem BUT actually that did not change anything and neither it solved your problem, I want you to try something right now, I want you to try this and tell me if it worked, the code below;
TICKET_PRICE = 10 #REMOVE THE INT because you don't need an int, TICKET_PRICE is already an int
ticket_amount = int(input("Hello {}, how many tickets would you like? ".format(name))) #Insert int here
total_cost = TICKET_PRICE * ticket_amount #remove int from here
print("{} tickets at ${} each will cost ${}".format(ticket_amount, TICKET_PRICE, total_cost))
I want you to try this code and I strongly believe you forgot to add an int to your ticket_amount. and that was the problem nothing else.
The question is WHY do we get "2525252525252552" 10 times?
Answer;
TICKET_PRICE = 10
ticket_amount = input("Hello, how many tickets would you like?") #REMOVED int here
total_cost = TICKET_PRICE * ticket_amount
print("Total cost is {}".format(total_cost))
#Running this code in the console
# >>> Hello, how many tickets would you like? 25
# >>> Total cost is 25252525252525252525
Now correction
TICKET_PRICE = 10
ticket_amount = int(input("Hello, how many tickets would you like?")) #INSERTED int here
total_cost = TICKET_PRICE * ticket_amount
print("Total cost is {}".format(total_cost))
#Running this code in the console
# >>> Hello, how many tickets would you like? 25
# >>> Total cost is 250
The ticket_amount in the first example is taking the input as a str so what is actually happening is this;
total_cost = 10 * "25" #25 is a string here
#output >>> 25252525252525252525
In the second example
total_cost = 10 * 25 #25 is an int here
#output >>> 250
There is a function where you can check to see if an object is a str or an int.
print(isinstance(total_cost,str))
#output >>> False
the function isinstance takes basically 2 arguments, the first argument is to check if that belongs to the second argument, so in this case, I did, Does the total_cost belong to a string? and the program tells me "FALSE" meaning no.
You should play around with your code ALOT to understand the nature of how python or programming works.
boi
14,241 Pointsboi
14,241 PointsHey Keith, The First thing is to learn markdown basics, so you can have proper formatting, I think I might have understood the problem you are facing, but I need to see your code.
You can learn it here