Ok, I see. Thanks for clarifying. It was not clear from the initial question.
Then, I am fine with (B) or (D) for the next official Sage release and for (D) thereafter. Sébastien -- 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/d/optout.