[Python-ideas] Proposal: A Reduce-Map Comprehension and a "last" builtin

Eric Fahlgren ericfahlgren at gmail.com
Fri Apr 6 10:53:53 EDT 2018


On Fri, Apr 6, 2018 at 7:47 AM, Peter O'Connor <peter.ed.oconnor at gmail.com>
wrote:

> 3) The idea that an assignment operation "a = f()" returns a value (a) is
> already consistent with the "chained assignment" syntax of "b=a=f()" (which
> can be thought of as "b=(a=f())").  I don't know why we feel the need for
> new constructs like "(a:=f())" or "(f() as a)" when we could just think of
> assignments as returning values (unless that breaks something that I'm not
> aware of)
>

​Consider

>>> if x = 1:
>>>     print("What did I just do?")​
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