Thanks for reporting this issue. I have opened an issue (https://github.com/sagemath/sage/issues/35889) and will propose a fix asap.
On Sunday, July 2, 2023 at 6:37:45 PM UTC+2 Georgi Guninski wrote: > You definitely can construct graph with incomparable vertices > and they worked as expected in python2. python3 regressed them > and devs are doing workarounds. > > The new testace is: > G=Graph([("A",1)]) > G.feedback_vertex_set() > === > File /home/sc_serv/sage/src/sage/graphs/connectivity.pyx:287, in > sage.graphs.connectivity.connected_component_containing_vertex() > 285 > 286 if sort: > --> 287 c.sort() > 288 return c > -- 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/2cc9c88f-8b27-4b35-b9b7-bf56de2e1a41n%40googlegroups.com.