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Thanks to the SC for such a thoughtful note. I really like where this is going. One thought. On Wed, Oct 20, 2021 at 6:21 AM Thomas Wouters <thomas@python.org> wrote:
1.
Is the performance of PEP 649 and PEP 563 similar enough that we can outright discount it as a concern? Does anyone actually care about the overhead of type annotations anymore? Are there other options to alleviate this potential issue (like a process-wide switch to turn off annotations)?
Annotations are used at runtime by at least one std lib module: dataclasses, and who knows how many third party libs. So that may not be practical. -CHB -- Christopher Barker, PhD (Chris) Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython