Checks for bliss

class sage.features.bliss.Bliss

Bases: sage.features.PythonModule

A Feature which describes whether the sage.graphs.bliss module has been enabled for this build of Sage and is functional.

EXAMPLES:

sage: from sage.features.bliss import Bliss
sage: Bliss().require()  # optional: bliss

class sage.features.bliss.BlissLibrary

Bases: sage.features.CythonFeature

A Feature which describes whether the Bliss library is present and functional.

EXAMPLES:

sage: from sage.features.bliss import BlissLibrary
sage: BlissLibrary().require()  # optional: bliss