[Python-Dev] Adding bytes.frombuffer() constructor to PEP 467

[INADA Naoki]

I submit an issue about it.

See https://bugs.python.org/issue29178

On Fri, Jan 6, 2017 at 7:38 PM, INADA Naoki <songofacandy at gmail.com> wrote:
>>
>> Thinking more about this, and after looking at my own code in asyncpg and
>> uvloop, I'm now in favor of adding bytes.frombuffer() with the proposed
>> signature: ``bytes.frombuffer(byteslike, length=-1, offset=0)``
>>
>
> Do you prefer a signature proposed first?
> I thought it from asyncio usage too.  Slicing from head of bytearray
> is more common
> than offset usage.
>
> But in previous thread, Serhiy and Victor proposed signature same to
> old buffer API.
>
>> I like the idea with Serhiy's API (as Python 2 buffer constructor):
>>
>> bytes.frombuf(buffer, [offset, size])
>> bytearray.frombuf(buffer, [offset, size])
>> memoryview.frombuf(buffer, [offset, size])