[Python-ideas] Stop displaying elements of bytes objects as printable ASCII characters in CPython 3

[M.-A. Lemburg]

On 10.09.2014 09:43, Nick Coghlan wrote:
> On 10 September 2014 17:36, M.-A. Lemburg <mal at egenix.com> wrote:
>> On 10.09.2014 09:04, Chris Lasher wrote:
>>> Why did the CPython core developers decide to force the display of
>>> ASCII characters in the printable representation of bytes objects in
>>> CPython 3?
>>
>> This wasn't forced. It's a simple consequence of turning the Python 2
>> 8-bit string type into the Python 3 bytes type while keeping breakage
>> to a pain level which doesn't have Python users skip Python 3 entirely ;-)
> 
> I believe you may be forgetting the pre-release period where there
> wasn't an immutable bytes types at all. It wasn't until PEP 3137 [1]
> was implemented that we got to the status quo for Python 3.

Oh, I do know. That was a path which was luckily quickly abandoned
as default bytes type :-)

Note that we now have PyByteArray C APIs in Python 3 for bytearray
objects. PyBytes C APIs are (mostly) the Python 2 PyString C APIs -
unlike what's listed in the PEP.

> Cheers,
> Nick.
> 
> P.S. I haven't forgotten my promise to try to put together a recipe
> for a cleaner wrapper around "memoryview(data).cast('c')", but it may
> be a while before I get back to the idea.
> 
> [1] http://www.python.org/dev/peps/pep-3137/
> 

-- 
Marc-Andre Lemburg
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