[Python-Dev] PEP 343 - Abstract Block Redux

Nick Coghlan ncoghlan at gmail.com
Mon May 16 11:30:44 CEST 2005


Steven Bethard wrote:
> If I've misunderstood, and there are other situations when
> "needs_finish" is required, it'd be nice to see some more examples.

The problem is try/except/else blocks - those are currently legal, so the 
programmer has to make the call about whether finalisation is needed or not.

I'll put this in the Open Issues section of the PEP - doing it lexically seems a 
little too magical for my taste (since it suddenly becomes more difficult to do 
partial iteration on the generator), but the decorator is a definite wart.

Cheers,
Nick.

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


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