[Python-3000] PEP 3138- String representation in Python 3000

[M.-A. Lemburg]

On 2008-05-09 18:06, Guido van Rossum wrote:
> On Fri, May 9, 2008 at 3:54 AM, M.-A. Lemburg <mal at egenix.com> wrote:
>> On 2008-05-08 22:55, Terry Reedy wrote:
>>> Functions that map unicode->unicode or bytes->bytes could be called
>>> transcoders.  Each type could be given a .transcode method to go along with
>>> but contrast with .encode or .decode.
>> Are you suggesting to have two separate methods which then
>> allow same-type-conversions ? One for encoding to the same
>> type and one for decoding ?
>>
>> Fine with me.
>>
>> They do have to map naturally to the codec method encode and
>> decode, though, so a single method won't do, unless maybe
>> you add a parameter to define the direction of the coding
>> process.
>>
>> In summary, I'd just like to see the following happen:
>>
>>  * revert the type restrictions on the PyCodec_* API
>>
>>  * enforce the restrictions on the .encode() and .decode()
>>   methods of PyUnicode and PyString objects (str and bytes)
>>
>>  * add a way to PyUnicode and PyString objects (str and bytes)
>>   to allow same type encoding and decoding
> 
> +1

Fine, so we need new methods for PyUnicode and PyString objects
which allow encoding and decoding using the same type (and enforce
the return types).

Any suggestions ?

How about these:

str.str_encode() -> str
str.str_decode() -> str

bytes.bytes_encode() -> bytes
bytes.bytes_decode() -> bytes

Thanks,
-- 
Marc-Andre Lemburg
eGenix.com

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