Guido was working on Dropbox with Python. One of areas was type hinting (of large Dropbox Python codebase), so it is partially coming from him.
Learnt this in Pycon 2014 if I recall correctly.
Learnt this in Pycon 2014 if I recall correctly.
Are type hints Pythonic? I personally don't think so - to me, they don't match the philosophy of the rest of the language. On the other hand, one could argue that the definition of Pythonic is simply "whatever Guido likes".