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Python Python Basics Functions and Looping Raising Exceptions

Posted by Khawla Habriri
Khawla Habriri
373 Points

Alternative to raise

Instead of raise, could we have used just an if .... else.... ? Also, the error "err" will always be printed? Even if the number of people is above 1?

Thanks

1 Answer

Pedro Cabral
Pedro Cabral
33,586 Points

An if-else block will do no good, because how do you know what to put inside? Are you going to print the error message? Imagine that you have a smart audio device and invoke that method by saying out loud "Split a check of 20 dollars by 0 people", how can it print the error message if the only input/output is an audio interface? In this case, the smart audio device might choose to verbalise the error message text via the speakers, but a light bulb might choose to switch its color to red. You throw/raise the exception, and then it's up to the caller to handle it appropriately.

Khawla Habriri
Khawla Habriri
373 Points

I see, that makes sens. Thank you!