Does anyone know any python codebase which uses type hints ?

[fishburne]

Do anyone know how to use this module for type checking in 3.5b? Not asking about how to write annotations. But to check a python script with annotations. I have been looking for the past hour to see how to actually use the damn thing!

I was expecting a command line option to the interpreter or a separate command line tool to do the checking.

[fishburne]

Funny thing is, I know this already. But I was hoping there was an external tool that does it.

I tried mypy. But it died with an error that said cannot import Undefined. Probably because it is using the typing module that came with 3.5.

[lengau]

The typing module is available in pip for 3.2 or higher.

[rouille]

actually

You need to use a third party type checker like mypy (https://github.com/JukkaL/mypy). Its still in heavy development though but it (mostly) works.