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Thu Apr 26 02:32:32 EDT 2018 · https://mail.python.org/pipermail/python-dev/2018-April/153087.html

> 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

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Showing content from https://mail.python.org/pipermail/python-dev/2018-April/153087.html below:

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