Need help with code

[Cosco]

ok so I have a school assignment due very soon and I am reqiured to write some code using python. The code i've been asked to write is the change between the orignal amount and the expense. The code has failed to work and i've tried almost everything to fix it please help.

(yes i have emaile my teacher but they haven't told me anything that I already know.

The error that oocurs is TypeError: unsupported operand type(s) for -: 'str' and 'int'

 

Here is the code if you could please have a look.

 

name = input("Enter first name: ")
originalAmount = input("Enter amouunt of money you have: ")
cost1 = int(input("How much was your first item? "))
cost2 = int(input("How much was your second item? "))
cost3 = int(input("How much was your third item? "))

expenses = cost1+cost2+cost3

cost=print("You spent a total of $: ",expenses)

change = originalAmount - expenses

cost = print("Welcome " + name ," your total cost is $: ",sum ,"and your change is $: ",change)

[igormp]

You forgot to cast your originalAmount to int, just like you did with cost1, 2 and 3.

 

You also are trying to print "sum" instead of "expenses".

[Cosco]

12 minutes ago, igormp said:

You forgot to cast your originalAmount to int, just like you did with cost1, 2 and 3.

 

You also are trying to print "sum" instead of "expenses".

Ok thanks i'll see what i can do. Before I stuff up the code would you have any idea what the code would be to cast the originalAmount to int?

[Wictorian]

1 minute ago, Cosco said:

Ok thanks i'll see what i can do. Before I stuff up the code would you have any idea what the code would be to cast the originalAmount to int?

int(input("Enter amouunt of money you have: "))

[Cosco]

2 minutes ago, Wictorian said:

int(input("Enter amouunt of money you have: "))

oh my gosh thank you so much that worked!!

[Wictorian]

Just now, Cosco said:

oh my gosh thank you so much that worked!!

you are welcome 

which grade do you study?

[Cosco]

1 minute ago, Wictorian said:

you are welcome 

which grade do you study?

year 10 ICT electives

[SansVarnic]

-= Topic moved to Programming =-

 

Please mind where you post.

[Guest]

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

cost = int(input("How much was your first item? "))
cost += int(input("How much was your second item? "))
cost += int(input("How much was your third item? "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

or

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

print("Enter Item Amounts")

cost = \
    int(input("Item 1: ")) + \
    int(input("Item 2: ")) + \
    int(input("Item 3: "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

Is cleaner imo. However you were just missing the int conversion on originalAmount.

[Cosco]

On 8/8/2020 at 10:57 PM, Nayr438 said:

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

cost = int(input("How much was your first item? "))
cost += int(input("How much was your second item? "))
cost += int(input("How much was your third item? "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

or

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

print("Enter Item Amounts")

cost = \
    int(input("Item 1: ")) + \
    int(input("Item 2: ")) + \
    int(input("Item 3: "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

Is cleaner imo. However you were just missing the int conversion on originalAmount.

Oh my goodneas thanks so much, This has helped out alot I really appreciate it!!!

[PiyushBanarjee]

On 8/8/2020 at 6:50 AM, Cosco said:

ok so I have a school assignment due very soon and I am reqiured to write some code using python. The code i've been asked to write is the change between the orignal amount and the expense. The code has failed to work and i've tried almost everything to fix it please help.

(yes i have emaile my teacher but they haven't told me anything that I already know.

The error that oocurs is TypeError: unsupported operand type(s) for -: 'str' and 'int'

 

Here is the code if you could please have a look.

 

name = input("Enter first name: ")
originalAmount = input("Enter amouunt of money you have: ")
cost1 = int(input("How much was your first item? "))
cost2 = int(input("How much was your second item? "))
cost3 = int(input("How much was your third item? "))

expenses = cost1+cost2+cost3

cost=print("You spent a total of $: ",expenses)

change = originalAmount - expenses

cost = print("Welcome " + name ," your total cost is $: ",sum ,"and your change is $: ",change)

 

I know that you've probable already summitted the code, but still, why did you not set up a simple loop so that you could add more than 3 items?, when i ran your code after correcting it,, the output was
Enter first name: Lol
Enter amouunt of money you have: 1000
How much was your first item? 100
How much was your second item? 100
How much was your third item? 200
You spent a total of $:  400
Welcome Lol  your total cost is $:  <built-in function sum> and your change is $:  600

subjectively, i don't know why you put sum function there, it returned <built-in function sum>, was it supposed to return sume value, anyways i refined your code and added a while loop so the user is not restricted to 3 items

name = input("Hi!,What is your name? ")
originalAmount = int(input("Please enter amount of money you have: "))
item_count = int(input("How many items did you buy ? -> "))
n = 1
expenses = 0
while n <= item_count:
    cost_n = int(input("Please enter the cost of item no." + str(n) + "-> "))
    expenses += cost_n
    n += 1
change = originalAmount - expenses

print("I am glad that I could help you ",name ," the total cost of items you bought is ",expenses,
      "$ and you are left with ",change, "$")

I added a while loop and also removed 1(imo) unnecessary print command, it has the same number of lines as yours so, i don't think that the size of text is much of a problem here.

[PiyushBanarjee]

On 8/8/2020 at 6:27 PM, Nayr438 said:

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

cost = int(input("How much was your first item? "))
cost += int(input("How much was your second item? "))
cost += int(input("How much was your third item? "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

or

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

print("Enter Item Amounts")

cost = \
    int(input("Item 1: ")) + \
    int(input("Item 2: ")) + \
    int(input("Item 3: "))

print(f"Welcome {name} your total cost is ${cost} and your change is ${currentAmount - cost}\n")

Is cleaner imo. However you were just missing the int conversion on originalAmount.

It indeed is neat, but i am not able to understand the code very well, especially the use of "/", I've never seen it before, can you please explain me?

[Guest]

3 hours ago, PiyushBanarjee said:

It indeed is neat, but i am not able to understand the code very well, especially the use of "/", I've never seen it before, can you please explain me?

"\" means the statement is continued on the next line.

 

3 hours ago, PiyushBanarjee said:

I added a while loop and also removed 1(imo) unnecessary print command, it has the same number of lines as yours so, i don't think that the size of text is much of a problem here...

It would probably be simpler to have the user enter a empty value when done

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

cost, count = 0, 0

print("Enter Item Amounts. When done just press enter")

while True:
    count += 1
    currInput = input(f"Item {count}: ")

    if currInput == "": break
    
    cost += int(currInput)

print(f"Welcome {name}, you purchased {count} items at a total cost of ${cost}. Your change is ${currentAmount - cost}\n")

 

[PiyushBanarjee]

9 hours ago, Nayr438 said:

"\" means the statement is continued on the next line.

 

It would probably be simpler to have the user enter a empty value when done

name = input("Enter first name: ")

currentAmount = int(input("Enter amount of money you have: "))

cost, count = 0, 0

print("Enter Item Amounts. When done just press enter")

while True:
    count += 1
    currInput = input(f"Item {count}: ")

    if currInput == "": break
    
    cost += int(currInput)

print(f"Welcome {name}, you purchased {count} items at a total cost of ${cost}. Your change is ${currentAmount - cost}\n")

 

Yes, thanks for correction, btw, since OP didn't say anything, can you tell, why did he put sum function there

[Cosco]

On 8/16/2020 at 12:34 PM, PiyushBanarjee said:

Yes, thanks for correction, btw, since OP didn't say anything, can you tell, why did he put sum function there

Lmao my teacher was gave me 100% so im gonna take it and leave it, and tbh I didn't even have that error (sum function) unless it just didn't appear for me.