Sorry for the confusion, I made the post assuming that it came from the oddly formatted singleton tuples (now I know why there is an extra comma there). Later I found out that the error was caused by something else; since this thread is not deleted here is the true source of the unhandled error
sage: g = Graph(); g.add_edges([[0, 2]]); g.canonical_label(partition=[[0], [1], [2]]) I think that the canonical label function when passing the inputs to bliss doesn't check if the partition matches the vertex set On Sunday, August 15, 2021 at 10:37:29 PM UTC+2 dim...@gmail.com wrote: > I certainly can't reproduce a SIGSEGV (i.e. a signal for memory access > violation). > So this is probably a badly formulated subject. > > On Sun, Aug 15, 2021 at 9:11 PM dmo...@deductivepress.ca > <dmo...@deductivepress.ca> wrote: > > > > Yes, SIGSEGV would be a problem, so I apologize if my responses are > noise, but my impression is that the term "SIGSEGV" should not have been > used. From reading the text of the post that you replied to, it appears to > me that the complaint was about "an incorrectly segmented return", which, > from the examples, I interpreted to be a complaint about erroneous commas. > Sorry if I'm off base. > > > > On Sunday, August 15, 2021 at 12:32:52 PM UTC-6 dim...@gmail.com wrote: > >> > >> > >> > >> On Sun, 15 Aug 2021, 21:13 dmo...@deductivepress.ca, < > dmo...@deductivepress.ca> wrote: > >>> > >>> I don't think there is any problem -- the output is correct. (And the > original message seems to have been deleted.) > >> > >> > >> SIGSEGV certainly is a problem. > >> > >>> It is just that python prints an extra comma at the end of tuples of > length 1, in order to make it clear that the parentheses represent a tuple. > For example: > >>> sage: tuple([tuple([tuple([0])])]) > >>> (((0,),),) > >>> > >>> On Sunday, August 15, 2021 at 3:55:03 AM UTC-6 dim...@gmail.com wrote: > >>>> > >>>> How do you run Sage? > >>>> What version, what OS? > >>>> How is Sage installed? > >>>> > >>>> > >>>> On Sun, 15 Aug 2021, 12:16 Leww, <bodn...@gmail.com> wrote: > >>>>> > >>>>> Using nauty where the result has a singleton anywhere in the result > gives an incorrectly segmented return. Below are some examples > >>>>> > >>>>> 1 possible construction: > >>>>> sage: tuple(hypergraphs.nauty(2, 3, uniform=2)) > >>>>> (((0, 1), (0, 2)),) > >>>>> > >>>>> 1 edge > >>>>> sage: tuple(hypergraphs.nauty(1, 2, uniform=2)) > >>>>> (((0, 1),),) > >>>>> > >>>>> 1 uniform case > >>>>> sage: tuple(hypergraphs.nauty(2, 2, uniform=1)) > >>>>> (((0,), (1,)),) > >>>>> > >>>>> everything together > >>>>> sage: tuple(hypergraphs.nauty(1, 1, uniform=1)) > >>>>> (((0,),),) > >>>>> > >>>>> -- > >>>>> 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+...@googlegroups.com. > >>>>> To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/137e937a-fd98-4429-b9ca-2e206884e9c6n%40googlegroups.com > . > >>> > >>> -- > >>> 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+...@googlegroups.com. > >>> > >>> To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/61d05705-5838-454c-9939-edbfc31ef999n%40googlegroups.com > . > > > > -- > > 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+...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/8ee791ae-f308-4242-9394-216363f9d922n%40googlegroups.com > . > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/22ad7e6d-2175-4c7c-af1f-b9d9e09a44d6n%40googlegroups.com.
