Highlighting for Python 3 type hints

There seems to be no support for Python 3 (released in 2008) type hints. From what I gather you are using the TextMate Python package for code highlighting, a somewhat more up-to-date highlighting package that most all other editors use (Sublime, Microsoft Code, Atom, GitHub) is MagicPython: https://github.com/MagicStack/MagicPython which has much better support for Python 3.