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Date: Tue, 07 Jan 2014 10:38:40 -0800
From: Ethan Furman <ethan@stoneleaf.us>
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Subject: Re: [Python-ideas] RFC: bytestring as a str representation [was: a new bytestring type?]
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Xref: csiph.com comp.lang.python:63446

On 01/07/2014 10:22 AM, MRAB wrote:
> On 2014-01-07 17:46, Andrew Barnert wrote:
>> On Jan 7, 2014, at 7:44, Steven D'Aprano <steve@pearwood.info> wrote:
>>
> I was thinking about Ethan's suggestion of introducing a new bytestring
> class and a lot of these suggestions are what I thought the bytestring
> class could do.

>>>
>>> Suppose we take a pure-ASCII byte-string and decode it:
>>>
>>>    b'abcd'.decode('ascii-compatible')
>>>
> That would be:
>
>      bytestring(b'abcd')
>
> or even:
>
>      bytestring('abcd')
>
> [snip]
>>
>>> Suppose we take a byte-string with a non-ASCII byte:
>>>
>>>    b'abc\xFF'.decode('ascii-compatible')
>>>
> That would be:
>
>      bytestring(b'abc\xFF')
>
> Bytes outside the ASCII range would be mapped to Unicode low
> surrogates:
>
>      bytestring(b'abc\xFF') == bytestring('abc\uDCFF')

Not sure what you mean here.  The resulting bytes should be 'abc\xFF' and of length 4.

--
~Ethan~