[Python-Dev] (name := expression) doesn't fit the narrative of PEP 20

[Greg Ewing]

> On Thu, Apr 26, 2018 at 10:11 AM, Yury Selivanov
> <yselivanov.ml at gmail.com> wrote:
> 
>>          my_func(arg, buffer=(buf := [None]*get_size()), size=len(buf))

Obviously what we want here is a variant of the binding
expression that also makes it a keyword argument:

    my_func(arg, buffer ::= [None]*get_size(), size = len(buffer))

-- 
Greg