On Wed, Oct 23, 2019 at 1:19 PM Christopher Barker <python...@gmail.com> wrote:
> On Wed, Oct 23, 2019 at 5:42 AM Rhodri James <rho...@kynesim.co.uk> wrote: > >> > I'm surprised by that description. I don't think it is just newcomers >> > who either suggest or prefer plus over pipe, and I don't think that pipe >> > is "more accurate". >> >> +1 (as one of the non-newcomers who prefers plus) >> > > me too. > > frankly, the | is obscure to most of us. And it started as "bitwise or", > and evokes the __or__ magic method -- so why are we all convinced that > somehow it's inextricably linked to "set union"? And set union is a bit > obscure as well -- I don't think that many people (newbies or not) would > jump right to this logic: > In my particular case I do know what `|` means in a set context. However, when I see code using it, it takes me a while to understand what it means and I tend to replace the operator with an explicit call to the union method. The only problem with that is when `dict_keys` are in use, as they do implement the `|` operator, but not the `union` method. They only have `isdisjoint`. > > I need to put two dicts together > That's kind of like a set union operation > The set object uses | for union > That's probably what dict uses -- I'll give that t try. > > Rather than: > > I need to put two dicts together > I wonder if dicts support addition? > I'll give that a try. > > so, I'm > > +1 on + > +0 on | > > if | is implemented, I'll bet you dollars to donuts that it will get used > far less than if + were used. > > (though some on this thread would think that's a good thing :-) ) > > -CHB > > > -- > Christopher Barker, PhD > > Python Language Consulting > - Teaching > - Scientific Software Development > - Desktop GUI and Web Development > - wxPython, numpy, scipy, Cython > _______________________________________________ > 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/TE2IFV2PIUADS35TD6BHPEO5KG6DDTNT/ > Code of Conduct: http://python.org/psf/codeofconduct/ > -- Sebastian Kreft
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