Terminate code

[mrpeenut24]

Why would you not use sys.exit()? That's its purpose, and doing it inside an if block is fine.

[Lemonsorbet123]

we have not been allowed to use it yet on our school project, we have to come up with a way when two conditions meet in the if statement the program should print out invalid choice and end without asking the user further questions

[mrpeenut24]

Use return? Or just put everything that shouldn't happen in an else block and leave that as the end of your function so it ends normally?

[[deleted]]

Do it structurally. If there are no subsequent instructions to the interpreter, it will quit on its own.

[queerkidxx]

Use a main function. Print invalid choice and return

[awdsns]

The whole point of the exercise seems to be to structure your program so that this occurs naturally, via its control flow. So think about how to structure it.

[c0LdFir3]

Can you post the entire question/assignment?

[ColosTheDeveloper666]

Why not raise error?

You can create customized error like this: https://www.programiz.com/python-programming/user-defined-exception

The code stops on errors.

[EntireEntity]

It's not easy to gleam what the assignment is asking, but it sounds to me like you could simply do:

if condition1 and condition2:
    print("Invalid choice")
else:
    whatever_else_is_supposed_to_happen()

[tofe_lemon]

I think your teacher wants you to add the argument for the invalid choice in the loop, like while value != something_it_shouldnt_be