There's a patch from pytype that backported the type annotation syntax from python3 to python27: https://github.com/google/pytype/blob/master/pytype/patches/...
Also, that doesn't help those of us stuck on Python 3.4, the last version that supports Windows XP (don't ask).
I haven't seen them used anywhere, but that's an okay solution I guess.
NB : by the way, love your blog :p
> NB : by the way, love your blog :p
Thanks :)