On Tue, 23 Aug 2016, Paul Leopardi wrote:
Do you have the package bliss or nauty installed?sage: is_package_installed('bliss') True
That explains it. canonical_label() uses Bliss by default if it is installed. Setting algorithm='sage' will override this (and slow down computation). So we should just expose more Bliss and Nauty features to Sage.
-- Jori Mäntysalo
