Usefulness of decorators

Question

hi guys I've search and read multiple post about decorators and I think my light bulb just lit up!

I was trying to find the usefulness of the decorator and it all became clear when I started to write this post.

I was asking myself why go into all this trouble if I can write one simple function that will wrap it anyway and using the decoratior on a funtion will make it unusable alone.

But I wasn't asking myself the right question.

Answer 1

Here is an example of what a decorator may be useful for:
https://code.sololearn.com/cD09ijlIS6Ev/?ref=app

Answer 2

Whoever hit minus on this could at least correct me... I mean isn't what the discussion section is about?

Answer 3

Yeah, about right. I've used them to easily catch exceptions that occur during runtime, by using a simple decorator.

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What is truly disappointing, though, is that you have to have the same parameter list as the decorator in order to use it properly.
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Here's some stuff: https://code.sololearn.com/cN64JekRVno0/?ref=app
Copy and paste into the interpreter or a file and run.

Answer 4

The decorators are made to implement other function that alone a fade and lifeless so they need the decorator to be as a whole.

Someone posted this address somewhere in here (I think it was Kuba)
https://www.thecodeship.com/patterns/guide-to-JUMP_LINK__&&__python__&&__JUMP_LINK-function-decorators/

He used the decorator as tag to wrap whatever he needed so a decorator for <p>, <div>, and so on so you don't have to rewrite the decoration over and over.

Am I on the right track here?