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Sat Nov 10 01:25:11 CET 2007 · https://mail.python.org/pipermail/python-dev/2007-November/075173.html

Martin v. Löwis wrote:
>> Not really, but the codec has more control over what happens to
>> the stream, ie. it's easier to implement look-ahead in the codec
>> than to do the detection and then try to push the bytes back onto
>> the stream (which may or may not be possible depending on the
>> nature of the stream).
> 
> YAGNI.

A non-seekable stream is not all that uncommon in network processing.
I usually end up either reading the complete data into memory
or doing the needed buffering by hand.

Regards,
-- 
Marc-Andre Lemburg
eGenix.com

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[Python-Dev] XML codec?