[Python-Dev] PEP 544: Protocols (original) (raw)

Matthias Kramm kramm at google.com
Tue Mar 21 19:50:39 EDT 2017

On Tue, Mar 21, 2017 at 11:05 AM, Ivan Levkivskyi <levkivskyi at gmail.com> wrote:

There are two places where PEP draft says:

"Note that there is no conceptual difference between explicit and implicit subtypes" and "The general philosophy is that protocols are mostly like regular ABCs, but a static type checker will handle them specially." Do you want to propose alternative wording for these, or would you rather like an additional statement?

Let's do an additional statement. Something like

"Static analysis tools are expected to automatically detect that a class implements a given protocol. So while it's possible to subclass a protocol explicitly, it's not necessary to do so for the sake of type-checking." -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20170321/dae83898/attachment-0001.html>

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