[ python-Bugs-1248658 ] dir should accept dirproxies for __dict__
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Sun Jul 31 15:24:18 CEST 2005
Bugs item #1248658, was opened at 2005-07-31 15:21
Message generated for change (Settings changed) made by ronaldoussoren
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>Category: Python Interpreter Core
>Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Ronald Oussoren (ronaldoussoren)
Assigned to: Nobody/Anonymous (nobody)
Summary: dir should accept dirproxies for __dict__
Initial Comment:
PyObject_Dir checks if the __dict__ of an object is a dict, if not it is
ignored. It should also accept dictproxies.
My usecase is an object that doesn't have a real dict, but looks up
attributes in another datastructure. When someone asks for the
__dict__ of this object I'm dynamicly building a new dictionary. I'd
like the __dict__ property to be a immutable value because changing
it won't (and shouldn't) affect the underlying object.
However, when I return the result of a call to PyDict_NewProxy the
builtin function dir will no longer use the contents of the __dict__
attribute, which is counterproductive because supporting dict is a
major usecase for supporting a __dict__ attribute in the first place!
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