Hi there, I'd like to make a backward incompatible change in Sage's interface: Currently there is a BinaryTree algorithmic data structure which is imported in sage.all from sage/misc/sage_ds.pyx. It is used only in rings/polynomial/polynomial_compiled.pyx. I'd like to unimport it to be able to import BinaryTree from sage/combinat. The new data structure is a mathematical/combinatorial object. As such it is immutable and has a parent namely BinaryTrees(). It is a very important (maybe the most important) object in combinatorics which, together with Dyck words and ordered trees, appear in a lot of combinatorial problems. It serve as a basis for various algebraic object such as the LodayRonco Hopf algebra the Dendriform and OverUnder operads.
So I'd like to have a vote for either one of those four options: 1. unimport BinaryTree from sage.misc.sage_ds and import them from combinat 2. leave think as such. Find a different name for the mathematical binary trees (eg: BinaryTreesCombinatorial). 3. rename BinaryTree from sage.misc.sage_ds (eg: BinaryTreesDataStructure) and import BinaryTree from combinat 4. something else ? Cheers, Florent PS: cc to sage-devel and sage-combinat-devel. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
