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Just a few days ago Guido proposed to adopt the Mypy syntax for type annotations in Python 3.5. There is a big discussion going on on the python-ideas mailing l

Just a few days ago Guido proposed to adopt the Mypy syntax for type annotations in Python 3.5. There is a big discussion going on on the python-ideas mailing list about that and the general idea of having optional static typing in Python: https://mail.python.org/pipermail/python-ideas/2014-August/028618.html https://mail.python.org/pipermail/python-ideas/2014-August/0... https://mail.python.org/pipermail/python-ideas/2014-August/028742.html https://mail.python.org/pipermail/python-ideas/2014-August/0... Recommended reading for those interested in the topic.

bsaul 12y ago
This is probably the best thing i've heard about python in the last 2 years. Guido's point are all 100% valid. Python should take example on Typescript. It's light and smart. And that's enough to cover 99% of the cases. Just let me specify that function foo's first parameter is an array of "stuff", and i'll be the happiest man. Leave the complicated cases for future versions.
oblique63 12y ago
Been using optional typing for almost a year now with Dart, and it's pretty awesome. Really hoping this comes to python!