Guido van Rossum wrote:
OK, ignore my previous comment. Sounds like the inidividual codecs
need to tighten their type checking though -- perhaps *that* can be
fixed in 3.0.1? I really don't see why any codec used to convert
between text and bytes should support its output type as input.

--Guido

On Wed, Jan 7, 2009 at 10:26 AM, M.-A. Lemburg <m...@egenix.com> wrote:
On 2009-01-07 16:34, Guido van Rossum wrote:
Sounds like yet another remnant of the old philosophy, which indeed
supported encode and decode operations on both string types. :-(
No, that's something I explicitly readded to Python 3k, since the
codecs interface is independent of the input and output types (the
codecs decide which combinations to support).

My memory is that making decode = bytes -> str and encode = str-> bytes was considered until it was noticed that there are sensible same-type transforms that fit the encode/decode model and then decided that reusing that model would be better than adding a transcode module/model.

The bug of Unicode de/encoders allowing wrong inputs and giving weird outputs confuses people and has come up on c.l.p, so I think fixing it soon would be good.

tjr

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