I am using Notepad++ (I'm a windows user) for more than 5 years for python/django development. Never regreted it - never found something better. I stuck to Notepad++ even when I was using a Mac for some months (through Wine) - I couldn't find something better or faster. Everything else is way too slow (Atom, VS Code, pycharm) or way too inefficient (Vim / Emacs - inefficient for me they may be great for you) to repla…
Did you try sublime on OS X? I like notepad++ too, I'd say it's pretty interchangeable with sublime on Windows - but I'd be surprised if it on wine is better than sublime native.
Depends on usage maybe? Haven't used NPP in a while anymore, but IIRC it lacked built-in functionality or plugins for go to definition/got to anything/PEP8/Flake8/GitGutter/... which work as good as Sublime's?