On approximately 4/29/2009 4:07 AM, came the following characters from
the keyboard of R. David Murray:
On Tue, 28 Apr 2009 at 20:29, Glenn Linderman wrote:
On approximately 4/28/2009 7:40 PM, came the following characters from
the keyboard of R. David Murray:
On Tue, 28 Apr 2009 at 13:37, Glenn Linderman wrote:
> C. File on disk with the invalid surrogate code, accessed via the
str > interface, no decoding happens, matches in memory the file on
disk with > the byte that translates to the same surrogate, accessed
via the bytes > interface. Ambiguity.
Unless I'm missing something, one of these is type str, and the
other is
type bytes, so no ambiguity.
You are missing that the bytes value would get decoded to a str; thus
both are str; so ambiguity is possible.
Only if you as the programmer decode it. Now, I don't understand the
subtleties of Unicode enough to know if Martin has already successfully
addressed this concern in another fashion, but personally I think that
if you as a programmer are comparing funnydecoded-str strings gotten
via a string interface with normal-decoded strings gotten via a bytes
interface, that we could claim that your program has a bug.
Hopefully Martin will clarify the PEP as I suggested in another branch
of this thread. He has eventually convinced me that this ambiguity is
not possible, via email discussion, but the PEP is certainly less than
sufficiently explanatory to make that obvious.
--
Glenn -- http://nevcal.com/
===========================
A protocol is complete when there is nothing left to remove.
-- Stuart Cheshire, Apple Computer, regarding Zero Configuration Networking
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