Hi Simon, thank you very much for your help. This was the solution! (and that I should not pass names=None to QuotientRing_nc.__init__ ;-) )
@Volker: I hope that ParentWithGens will be removed soon. For a beginner, it is really hard to figure out how to define derived classes, especially when you have to inherit from something that is deprecated. Best wishes, Thomas -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/groups/opt_out.
