[Python-Dev] 'hasattr' is broken by design

[Nick Coghlan]

On Tue, Aug 24, 2010 at 7:49 AM, Michael Foord
<fuzzyman at voidspace.org.uk> wrote:
> Certainly that is true for len. getattr obviously involves invoking code if
> you are fetching a property or descriptor. No idea how you conclude that
> hasattr executing code adds flexibility to the language though.

Proxy objects like the one in the weakref module don't work if
hasattr() doesn't implicitly invoke __getattr__.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia