Both language semantics and language best practices are pretty similar in Python and Go, and I am sure this helps a lot. Transliterating to something like Java

Both language semantics and language best practices are pretty similar in Python and Go, and I am sure this helps a lot. Transliterating to something like Java would be hard because their interfaces work differently enough from duck typing to force a lot of refactoring. And switching to something even more different, like Haskell or Clojure, would just make transliteration impossible.