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Fri Aug 29 13:22:10 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-August/136032.html

On Fri, 29 Aug 2014, M.-A. Lemburg wrote:

> On 29.08.2014 02:41, Stephen J. Turnbull wrote:
> Since Python allows working with lone surrogates in Unicode (they
> are valid code points) and we're using UTF-8 for marshal, we needed
> a way to make sure that Python 3 also optionally supports working
> with lone surrogates in such UTF-8 streams (nowadays called CESU-8:
> http://en.wikipedia.org/wiki/CESU-8).

If I want that wouldn't I specify "cesu-8" as the encoding?

i.e., instead of .decode ('utf-8') I would use .decode ('cesu-8').  Right 
now, trying this I get that cesu-8 is an unknown encoding but that could 
be changed without affecting the behaviour of the utf-8 codec.

It seems to me that .decode ('utf-8') should decode exactly and only valid 
utf-8, including the non-use of surrogate pairs as an intermediate 
encoding step.

Isaac Morland			CSCF Web Guru
DC 2554C, x36650		WWW Software Specialist

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[Python-Dev] surrogatepass - she's a witch, burn 'er! [was: Cleaning up ...]