On Sun, 13 Apr 2008 16:49:51 -0300, Gabriel Genellina wrote: > En Sun, 13 Apr 2008 01:57:42 -0300, Adam Bregenzer > <[EMAIL PROTECTED]> escribió: > >> I am writing an extension and have "hidden" data included in the >> object's C structure that is not visible to python. I am unsure what >> would happen to that data if the python object were copied or pickled >> and would prefer to raise an exception whenever code tries to copy/deep >> copy/pickle or marshal the object since it would not make sense. Where >> would I look to control that? > > You could raise an exception in __getstate__ - that would make pickle > fail, and probably copy too but I'm not sure of that.
Thank you for pointing me in the right direction. Implementing __getstate__ does trigger the exception for copy, however I seem to get the most helpful error messages by implementing __reduce__ and __getstate__ with a reduce related exception message and implementing __copy__ with a copy related exception message. Final question: What is the best exception to use. I am using NotImplementedError since it is deliberately not implemented. Is that correct or would a TypeError exception be more appropriate? Thanks, Adam -- http://mail.python.org/mailman/listinfo/python-list
