N
Neal Becker
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).
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).