[Python-Dev] Type hints -- a mediocre programmer's reaction (original) (raw)

Chris Withers chris at withers.org
Tue Apr 21 08:56:42 CEST 2015

On 20/04/2015 19:30, Harry Percival wrote:

Hi all,

tldr; type hints in python source are scary. Would reserving them for stub files be better? I was trying to find Jack's original post as I think his summary is excellent and aligns well with where I think I'm coming from on this:

https://mail.python.org/pipermail/python-dev/2015-April/139253.html

However, Harry makes just as many good points so I'll reply here, with a note that while switching to (type/header/stub - my ordered preference for how to describe .pyi files) is preferable to type hints inside files, it's still a massive change to the language, not one I can say I've missed over the past 15 years, and one if asked to vote on (I know that's not the case ;-)) that I would choose to vote against.

Anyway, I've not posted much to python-dev in quite a while, but this is a topic that I would be kicking myself in 5-10 years time when I've had to move to Javascript or because everyone else has drifted away from Python as it had become ugly...

Chris

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