[Python-ideas] PEP 572: Statement-Local Name Bindings

[Kirill Balunov]

 2018-02-28 16:49 GMT+03:00 Serhiy Storchaka <storchaka at gmail.com>:

> 28.02.18 00:27, Chris Angelico пише:
>
>> Example usage
>> =============
>>
>> These list comprehensions are all approximately equivalent::
>>
>>      # Calling the function twice
>>      stuff = [[f(x), f(x)] for x in range(5)]
>>
>
> Other options:
>
>     stuff = [[y, y] for y in (f(x) for x in range(5))]
>

Why not `stuff = [[y, y] for y in map(f, range(5))]`?  It is currently the
fastest and most readable version IMHO.

With kind regards,
-gdg
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