Hmm the only thing I can think of is that .__reduce__ is never called because your metaclass (i.e. type(MyPolyRing)) is a subclass of a class wich implements .__reduce_ex__
can you check wether type(MyPolyRing).__reduce__() is actually called? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org