[New-bugs-announce] [issue41559] Add support for PEP 612 to typing.py

Guido van Rossum report at bugs.python.org
Sat Aug 15 14:36:04 EDT 2020

New submission from Guido van Rossum <guido at python.org>:

We need stub versions of ParamSpec and Concatenate added to typing.py, plus tests that ensure these actually work in all situations required by the PEP. (It's not so important to ensure that they raise exceptions at runtime in cases where the PEP says they needn't work -- static type checkers will flag those better.)

components: Library (Lib)
messages: 375487
nosy: gvanrossum
priority: normal
severity: normal
stage: needs patch
status: open
title: Add support for PEP 612 to typing.py
type: behavior
versions: Python 3.10

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