Feature for testing the presence of dvipng

sage.features.dvipng.all_features()[source]
class sage.features.dvipng.dvipng(*args, **kwds)[source]

Bases: Executable

A Feature describing the presence of dvipng.

EXAMPLES:

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

>>> from sage.all import *
>>> from sage.features.dvipng import dvipng
>>> dvipng().is_present()             # optional - dvipng
FeatureTestResult('dvipng', True)