Features for testing the presence of graphviz#

class sage.features.graphviz.Graphviz(*args, **kwds)[source]#

Bases: JoinFeature

A Feature describing the presence of the dot, neato, and twopi executables from the graphviz package.

EXAMPLES:

sage: from sage.features.graphviz import Graphviz
sage: Graphviz().is_present()  # optional - graphviz
FeatureTestResult('graphviz', True)

>>> from sage.all import *
>>> from sage.features.graphviz import Graphviz
>>> Graphviz().is_present()  # optional - graphviz
FeatureTestResult('graphviz', True)
sage.features.graphviz.all_features()[source]#
class sage.features.graphviz.dot(*args, **kwds)[source]#

Bases: Executable

A Feature describing the presence of dot.

class sage.features.graphviz.neato(*args, **kwds)[source]#

Bases: Executable

A Feature describing the presence of neato.

class sage.features.graphviz.twopi(*args, **kwds)[source]#

Bases: Executable

A Feature describing the presence of twopi.