At 11:27 AM 6/10/2007 +0100, Gustavo Carneiro wrote: > I have to agree with you. If removing support for > self.__dict__['propertyname'] (where propertyname is also the name > of a descriptor) is the price to pay for significant speedup, so be > it. People doing that are asking for trouble anyway! How so? This order of lookup is explicitly defined by the precedence rules of PEP 252: """When a dynamic attribute (one defined in a regular object's __dict__) has the same name as a static attribute (one defined by a meta-object in the inheritance graph rooted at the regular object's __class__), the static attribute has precedence if it is a descriptor that defines a __set__ method (see below); otherwise (if there is no __set__ method) the dynamic attribute has precedence. In other words, for data attributes (those with a __set__ method), the static definition overrides the dynamic definition, but for other attributes, dynamic overrides static.""" I fail to see how relying on explicitly-documented language behavior is "asking for trouble".
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