On 3/30/13 1:43 PM, Gary McConnell wrote:
OK now I'm back in a familiar nightmare - if I set the vectors to be immutable then I cannot treat them as vectors because they seem to be of "NoneType" or something so have no length etc etc; however I cannot /not /set them to be immutable if I wish to work through a list consisting of those very vectors. I remember now that this is what drove me to abandon anything other than the plain old nested subroutines a long time ago, because I couldn't reverse-engineer my way out of this conundrum. Is there something simple that will put me out of my misery please?!!
Sure; convert to tuples to store into the set and test membership in the set. I've updated the gist:
https://gist.github.com/jasongrout/5276508 Thanks, Jason -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
