Good points! It's always good to learn from the pros! So, what it means is that the test is not meaningful, because of the different way that object attributes are accessed (not as o.x, which could be compiled).
Nevertheless, the general impression remains that dicts *are* faster than objects, because attribute lookup uses dicts itself. Is that correct? thanks Andre On 8/25/06, Fredrik Lundh <[EMAIL PROTECTED]> wrote: > Andre Meyer wrote: > > > Is the test meaningful and are you surprised by the results? > > surprised by the amount of code you needed to test this, at least. and you > might wish to use the proper spelling for > > v = self.obj.__getattribute__(a) > > which is > > v = getattr(obj, a) > > and is quite a bit faster, at least in CPython. > > (you should also use setattr() instead of __setattr__; in general, if you > find your- > self *calling* a method named __method__, there's most likely a better way to > do it). > > > I am, actually, because I would have assumed that attribute access with an > > object should be faster because lookup can be precompiled. > > huh? you're using a reflection API; there's no way the compiler can figure > out > in advance what you're going to pass to getattr(). > > </F> > > > > -- > http://mail.python.org/mailman/listinfo/python-list > -- Dr. Andre P. Meyer http://python.openspace.nl/meyer TNO Defence, Security and Safety http://www.tno.nl/ Delft Cooperation on Intelligent Systems http://www.decis.nl/ Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of. - Douglas Adams -- http://mail.python.org/mailman/listinfo/python-list
