[Python-Dev] descriptor as instance attribute

Jon Wells jon at sandgate.com
Mon Jan 9 15:32:13 CET 2012


I can't find an answer to this grovelling through get user info. on
descriptors.

Assuming desc() is a data descriptor class why are the following not the
same???

    class poop(object):
        var = desc()

and
        
    class poop(object):
        def __init__(self):
            self.var = desc()

In the second form the descriptor protocol for access to 'var' is
ignored. 

Would seem to not make sense to me.

jon.




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