The update of Networkx to version 1.0rc1 change the behavior of copy from a shallow copy to a deep copy.
It exposes the following, already present in sage 4.2.1: sage: X = species.SingletonSpecies() sage: B = species.CombinatorialSpecies() sage: B.define(X+B*B) sage: g = B.digraph() sage: s=set(g.vertices()) sage: [ deepcopy(k) in s for k in s ] [True, False, False, False] Is it the intended result or a bug in species or ... something else? ( of course we have: sage: [ copy(k) in s for k in s ] sage: [True, True, True, True] ) -- 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
