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[Python-Dev] PEP 467: Minor API improvements to bytes, bytearray, and memoryview

Brett Cannon brett at python.org
Tue Jun 7 17:40:35 EDT 2016 
On Tue, 7 Jun 2016 at 14:38 Paul Sokolovsky <pmiscml at gmail.com> wrote:

> Hello,
>
> On Tue, 7 Jun 2016 17:31:19 -0400
> Barry Warsaw <barry at python.org> wrote:
>
> > On Jun 07, 2016, at 01:28 PM, Ethan Furman wrote:
> >
> > >* Add ``bytes.iterbytes``, ``bytearray.iterbytes`` and
> > >   ``memoryview.iterbytes`` alternative iterators
> >
> > +1 but I want to go just a little farther.
> >
> > We can't change bytes.__getitem__ but we can add another method that
> > returns single byte objects?  I think it's still a bit of a pain to
> > extract single bytes even with .iterbytes().
> >
> > Maybe .iterbytes can take a single index argument (blech) or add a
> > method like .byte_at(i).  I'll let you bikeshed on the name.
>
> What's wrong with b[i:i+1] ?
>

It always succeeds while indexing can trigger an IndexError.
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