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Fri Oct 7 16:09:48 CEST 2005 · http://mail.python.org/pipermail/python-dev/2005-October/057048.html

Eric Nieuwland wrote:
> What happens to
> 
>     with 40*13+2 as X:
>         print X

It would fail with a TypeError because the relevant slot in the type object 
was NULL - the TypeError checks aren't shown for simplicity's sake.

This behaviour isn't really any different from the existing PEP 343 - the only 
difference is that the statement looks for a __with__ slot on the original 
EXPR, rather than looking directly for an __enter__ slot.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
---------------------------------------------------------------
             http://boredomandlaziness.blogspot.com

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[Python-Dev] Proposed changes to PEP 343