Le samedi 03 mars 2012 à 14:41 +0200, Eli Bendersky a écrit : > >> I'd expect slice subscripts to be part of the sequence interface, and > >> yet they are not. In fact, they are part of the mapping interface. For > >> example, the list object has its slice get/set methods assigned to a > >> PyMappingMethods struct. So does a bytes object, and pretty much every > >> other object that wants to support subscripts. > > > > It comes from: > > http://hg.python.org/cpython/rev/245224d1b8c9 > > http://bugs.python.org/issue400998 > > > > Written by Michael Hudson and reviewed by Guido. > > I wonder why this patch chose to add mapping protocol support to tuples > > and lists, rather than add a tp_ slot for extended slicing. > > > > Why a separate tp_ slot for extended slicing? ISTM slicing pertains to > sequences, similarly to other numeric indices. If you look at > PySequenceMethods it has these (apparently no longer used fields):
Yes, I meant sq_ slot, my bad. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
