If that's the case then 2.7.18 will continue working and probably it is a bad idea to port it. A lot of work for minimum gain. But if you actively changing the

If that's the case then 2.7.18 will continue working and probably it is a bad idea to port it. A lot of work for minimum gain. But if you actively changing the code, the maintenance will get more and more expensive. With packages dropping python 2 support if you discover a bug in one of your dependencies and fix is in package that no longer work on python 2 you'll need to backport the fix (and maintain your fork) or migrate your code.