Where should I put this?😕

#help #developers #python #programming

I need a small help!

Well, just now I wanted to add a new function to my python library - py-everything! But I am not sure in which module I should put it? First I thought, ok, it should go into maths. But then I thought it is not really a mathematical operation, you are checking if a number is even or not? I Will, be happy if you helped!

The function takes in a number and returns True if it is even, False otherwise.

So, should I put it in `maths` or `init` - the base module?

Top comments (8)

Jason C. McDonald • Apr 28 '21 • Edited

__init__ shouldn't usually contain implementations, so I'd put it in maths.

Then, if you want mylib.maths.is_number to be available as mylib.is_number, you'd put this in __init__.py...

import .maths.is_number as is_number

That will allow you to import it from your library like this:

from mylib import is_number

PyBash • Apr 29 '21

Yes, but it is a very common function so, I would want so that it can be imported easily.

Jason C. McDonald • Apr 29 '21

Ergo, the preceding suggestion. You still don't want to put implementation in __init__.py if you can at all help it.

PyBash • Apr 30 '21

Hmm, I also don't want to, but I want the function to be accessible much easier, you see?

Jason C. McDonald • Apr 30 '21 • Edited

That's why I suggested what I did. By following the technique I outlined, you can access the function from just mylib instead of mylib.maths. Read my initial comment again carefully.