Hi. Is this a case that only the BDFL could know and pronounce on ... or I'm missing somenthing ... Thanks for any feedback, Samuele Pedroni. ----- Original Message ----- From: Samuele Pedroni <pedroni@inf.ethz.ch> To: <python-dev@python.org> Sent: Friday, June 01, 2001 2:49 PM Subject: [Python-Dev] __xxxattr__ caching semantic > Hi. > > What is the intendend semantic wrt to __xxxattr__ caching: > > class X: > pass > > def cga(self,name): > print name > > def iga(name): > print name > > x=X() > x.__dict__['__getattr__'] = iga # 1. > x.__getattr__ = iga # 2. > X.__dict__['__getattr__'] = cga # 3. > X.__getattr__ = cga # 4. > x.a > > for the manual > > http://www.python.org/doc/current/ref/customization.html > > with all the variants x.a should fail, they should have > no effect. In practice 4. work. > > Is that an implementation manual mismatch, is this indented, is there > code around using 4. ? > > I'm asking this because jython has differences/bugs in this respect? > > I imagine that 1.-4. should work for all other __magic__ methods > (this should be fixed in jython for some methods), > OTOH jython has such a restriction on __del__ too, and this one cannot > be removed (is not simply a matter of caching/non caching). > > regards, Samuele Pedroni. > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev >
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