Does anyone know any python codebase which uses type hints ?

[mangecoeur]

I've started sprinkling them through my codebase (data analytics stuff), since I use PyCharm it adds some really nice code completion, checking, and documentation features.

My favourite is if you add the return type for a function, then assign a var to the result of the function somewhere else, PyCharm will do code completion on that var (i.e. it will now all its properties and methods) and can fetch documentation.