You have a good point.
This would also prevent beginners from reading dev docs and accidentally trying to use features that are not yet available. I've seen this a lot.
Django fully supports Python 3 from version 1.5. If you can use it or not depends more on the other packages you might have installed like DB adapters, image processing, etc. https://caniusepython3.com is a good way to know, you just need to drop your requirements.txt and it will tell you!
- burro (donkey)
- cerveja (beer)
- inferno (hell)
- torneira (water tap)
- frango assado (roasted chicken)
- aranha (spider)