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Author ncoghlan
Recipients cheryl.sabella, cvrebert, josh.r, martin.panter, ncoghlan, pitrou, rhettinger, scoder
Date 2018-02-14.18:08:28
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Message-id <1518631708.89.0.467229070634.issue20632@psf.upfronthosting.co.za>
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Allowing for None-first and None-last ordering is a fair use case, but I'm not sure a __key__ protocol is the right answer to that - as your own example shows, it gets tricky when dealing with nested containers.

It may make sense to raise the question on python-ideas for Python 3.8+, though, with Python-side ordering of database records as the main motivating use case.
History
Date User Action Args
2018-02-14 18:08:29ncoghlansetrecipients: + ncoghlan, rhettinger, pitrou, scoder, cvrebert, martin.panter, josh.r, cheryl.sabella
2018-02-14 18:08:28ncoghlansetmessageid: <1518631708.89.0.467229070634.issue20632@psf.upfronthosting.co.za>
2018-02-14 18:08:28ncoghlanlinkissue20632 messages
2018-02-14 18:08:28ncoghlancreate