On Thu, Jul 5, 2018 at 3:15 PM, Guido van Rossum <gu...@python.org> wrote: > Let me be slightly contrarian. :-) > > On Wed, Jul 4, 2018 at 9:12 PM Chris Angelico <ros...@gmail.com> wrote: >> 2) Is the result of the expression the modified value or the original? > > Someone (sadly I forget who) showed, convincingly (to me anyways :-) that it > should return whatever the `__iadd__` method returns, or (if there isn't > one) the result of `a = a + b`.
I happen to feel the same way, but it does destroy the elegance of "x := expr" having the exact same value as "expr", and ALSO having the exact same value as "x". But yes, the biggest argument is the lack of use cases, for both iadd and unpacking. ChrisA _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
