I'm not excited about suggesting the walrus operator when people want to chain mutating method calls like this. It results in ugly code with way too many parentheses and a distinctly un-Pythonic flavor. I hope the OP doesn't go off and infect a whole subcommunity with this idiom.
On Sat, Jan 18, 2020 at 10:05 PM Inada Naoki <songofaca...@gmail.com> wrote: > On Sun, Jan 19, 2020 at 2:45 PM Siddharth Prajosh <spraj...@gmail.com> > wrote: > > > > Moreover, shouldn't it work? > > How do I add that feature in Python? > > How you can do it with warus operator. > > >>> (xs := list(range(10))).append(42) > >>> xs > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 42] > > Regards, > > -- > Inada Naoki <songofaca...@gmail.com> > _______________________________________________ > 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/24YMTGYKCNFHS2JROYSNSP6MUPZAFUCV/ > Code of Conduct: http://python.org/psf/codeofconduct/ > -- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* <http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-change-the-world/>
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