[Python-Dev] PEP 383: Non-decodable Bytes in System Character Interfaces

"Martin v. Löwis" martin at v.loewis.de
Thu Apr 30 21:10:37 CEST 2009

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MRAB wrote:
> One further question: should the encoder accept a string like
> u'\xDCC2\xDC80'? That would encode to b'\xC2\x80'

Indeed so.
> which, when decoded, would give u'\x80'.

Assuming the encoding is UTF-8, yes.
> Does the PEP only guarantee that strings decoded
> from the filesystem are reversible, but not check what might be de novo
> strings?

Exactly so.
Regards,
Martin

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