[dreistdreist]

Except it doesn't have type hinting. Which is something you definitely need if you want to write good OOP software as described by the literature (Clean Code, Code Complete, Effective Java etc).

[fiedzia]

Type hinting is not exactly there yet, but its coming. You can already write:

def foo(x:int) -> int: return x+1

to get hints in your IDE (though its not enforced yet by interpreter).