[elcaro]

> isn't it more like Python 3

Not in the slightest. Python 3 made breaking changes to the CPython code base (yes that's a simplification). There's enough backwards incompatibility to consider them different languages, but I'd guess that there might still be bits and pieces of code that is identical (or largely unchanged) between the Python 2 and 3 implementations.

Raku - on the other hand - does not use any of the Perl code base; it's a completely different runtime written from the ground up.