[issue7659] Attribute assignment on object() instances raises wrong exception

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

But an object to which you can assign attributes but which has no methods can be useful in a number of contexts.  It's not a glorified dict, because attribute-style access is different from dict-style access.  The main place I have used this (creating my own trivial object subclass) is for passing a duck-typed object in to a function that only needs to access certain attributes to get the correct quack.

Why prevent us from using an object instance for this if there's not a functional reason for it?  Python is supposed to be a Consulting Adults language, after all :).

That said, I suspect that giving object a dict would break various assumptions in the core code, and I have no problem with creating that trivial subclass.  It does have the advantage of providing a more meaningful name in error messages.

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nosy: +r.david.murray

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<http://bugs.python.org/issue7659>
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