Hi Steven, On Sun, May 24, 2020, 8:14 AM Steven D'Aprano
> sorted(paths, key=lenāstr, reverse=True) > *semi-wink* > Do you have an evil twin with whom you share email. Yesterday you were arguing against functional programming style on the grounds that filtering based on a predicate was too obscure represented as 'filter(pred, ...))' Today you want full function composition. Fwiw, I like function composition. This example makes a good case for it. Too bad that symbol isn't on most keyboards. I don't think 'compose(len, str)' looks so terrible, but it's longer. > > > So I implemented `PurePath.__len__` as `str(len(path))`. > > > > Serhiy and Remi objected, because it might not be obvious that the length > > of the path would be the length of string. > > It isn't obvious to me that the length of a path is the length of the > string representation of that path. > > I thought that the length of the path would be the number of path > components: > > /tmp/file # length 2 > > I wouldn't have predicted that was the length of the string > representation of the path. > > > -- > Steven > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/RHOPEZHLIPN5OVHNQGGT55VF5OBG4RJX/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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