I'm looking for a way to implement Django's autocompletion and hints. I'm aware that it's possible in Sublime Text 3. I'm looking at how to do it in the Sublime Text 4.
For example, I'm unable to use Djanerio in Sublime package browser going: preferences -> Package Control: Djanerio.
It doesn't find anything.
Check to see if you already have it installed: Preferences → Package Control → Package Control: List Packages. It won't show up if you just do Preferences → Package Control → Package Control: Djaneiro (note the spelling). If it's not installed yet, choose Preferences → Package Control → Package Control: Install → Djaneiro. It should work perfectly fine on Sublime Text 4.
I also highly recommend checking out Anaconda (not at all related to the Anaconda Python distribution). Once it's set up properly, it's incredibly useful. Keep in mind that Djaneiro was last updated 5 years ago, and most of the code is from 8-11 years ago. An awful lot has changed in Django since then.