Etienne Robillard wrote: > On Fri, 12 Oct 2012 06:42:03 -0400 > Neal Becker <ndbeck...@gmail.com> wrote: > >> I wonder if there is a recommended approach to handle this issue. >> >> Suppose objects of a class C are serialized using python standard pickling. >> Later, suppose class C is changed, perhaps by adding a data member and a new >> constructor argument. >> >> It would see the pickling protocol does not directly provide for this - but >> is there a recommended method? >> >> I could imagine that a class could include a class __version__ property that >> might be useful - although I would further expect that it would not have been >> defined in the original version of class C (but only as an afterthought when >> it became necessary). >> >> -- >> http://mail.python.org/mailman/listinfo/python-list > > i guess a easy answer is to say to try python 3.3 but how would this translate > in python (2) code ?
So are you saying python 3.3 has such a feature? Where is it described? -- http://mail.python.org/mailman/listinfo/python-list
