Seems to me it's much more obvious that "name:=expression" is assigning expression to name than "name!expression". The ! is also confusing because "!=" means "not equals", so the "!" symbol is already sort of associated with "not"
On Fri, Apr 6, 2018 at 11:27 AM, Cammil Taank <cta...@gmail.com> wrote: > I'm not sure if my suggestion for 572 has been considered: > > ``name! expression`` > > I'm curious what the pros and cons of this form would be (?). > > My arguments for were in a previous message but there do not seem to be > any responses to it. > > Cammil > > On Fri, 6 Apr 2018, 16:14 Guido van Rossum, <gu...@python.org> wrote: > >> On Fri, Apr 6, 2018 at 7:47 AM, Peter O'Connor < >> peter.ed.ocon...@gmail.com> wrote: >> >>> Hi all, thank you for the feedback. I laughed, I cried, and I learned. >>> >> >> You'll be a language designer yet. :-) >> >> >>> However, it looks like I'd be fighting a raging current if I were to >>> try and push this proposal. It's also encouraging that most of the work >>> would be done anyway if ("Statement Local Name Bindings") thread passes. >>> So some more humble proposals would be: >>> >>> 1) An initializer to itertools.accumulate >>> functools.reduce already has an initializer, I can't see any controversy >>> to adding an initializer to itertools.accumulate >>> >> >> See if that's accepted in the bug tracker. >> >> >>> 2) Assignment returns a value (basically what's already in the "Statement >>> local name bindings" discussion) >>> `a=f()` returns a value of a >>> This would allow updating variables in a generator (I don't see the need >>> for ":=" or "f() as a") but that's another discussion >>> >> >> Please join the PEP 572 discussion. The strongest contender currently is >> `a := f()` and for good reasons. >> >> -- >> --Guido van Rossum (python.org/~guido) >> _______________________________________________ >> Python-ideas mailing list >> Pythonemail@example.com >> https://mail.python.org/mailman/listinfo/python-ideas >> Code of Conduct: http://python.org/psf/codeofconduct/ >> >
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