Okay, this time it did not take long. Quote from the constructor of Partitions :
if 'parts_in' in kwargs: return Partitions_parts_in(n, kwargs['parts_in']) elif 'starting' in kwargs: return Partitions_starting(n, kwargs['starting']) elif 'ending' in kwargs: return Partitions_ending(n, kwargs['ending']) >From this code, we learn that we can build a partitions with a "starting" parameter, an "ending" parameter, OR a "parts_in" parameter, but that those arguments CAN NEVER BE COMBINED. Honestly, you cannot look at a code like that and not notice that something wrong is going on. I will create (as in #13742) a patch that screams when bad input is given. Actually I just did, it is #15467. Nathann > -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/groups/opt_out.