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Author JelleZijlstra
Recipients AlexWaygood, JelleZijlstra, cdce8p, gvanrossum, kj, miss-islington, serhiy.storchaka, sobolevn
Date 2022-02-19.05:48:03
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Message-id <1645249683.94.0.613672747287.issue44791@roundup.psfhosted.org>
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Content 
I'm looking at https://github.com/python/cpython/pull/30969 and I'm not sure what the motivation for the change is. PEP 612 is quite precise here (https://www.python.org/dev/peps/pep-0612/#id1) and allows only a ParamSpec as the last argument to Concatenate.

What is the use case for using ... as the last argument? What should it mean to a static type checker?
History
Date User Action Args
2022-02-19 05:48:03JelleZijlstrasetrecipients: + JelleZijlstra, gvanrossum, serhiy.storchaka, miss-islington, sobolevn, kj, AlexWaygood, cdce8p
2022-02-19 05:48:03JelleZijlstrasetmessageid: <1645249683.94.0.613672747287.issue44791@roundup.psfhosted.org>
2022-02-19 05:48:03JelleZijlstralinkissue44791 messages
2022-02-19 05:48:03JelleZijlstracreate