[Python-Dev] PEP 383: Non-decodable Bytes in System Character Interfaces (original) (raw)

Lino Mastrodomenico l.mastrodomenico at gmail.com
Tue Apr 28 15:14:19 CEST 2009


2009/4/28 Hrvoje Niksic <hrvoje.niksic at avl.com>:

Lino Mastrodomenico wrote:

Since this byte sequence [b'\xed\xb3\xbf'] doesn't represent a valid character when decoded with UTF-8, it should simply be considered an invalid UTF-8 sequence of three bytes and decoded to '\udced\udcb3\udcbf' (not '\udcff'). "Should be considered" or "will be considered"?  Python 3.0's UTF-8 decoder happily accepts it and returns u'\udcff':

b'\xed\xb3\xbf'.decode('utf-8') '\udcff'

Only for the new utf-8b encoding (if Martin agrees), while the existing utf-8 is fine as is (or at least waaay outside the scope of this PEP).

-- Lino Mastrodomenico



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