#101 create x3d.py example program using saxonhe.py

[Don Brutzman]

It will be helpful to create an x3d.py example program using saxonhe.py

• https://pypi.org/project/x3d/
• https://pypi.org/project/saxonche/

once successful, saxonche.py might be linked directly with x3d.py for higher performance running many X3D stylesheets written in xslt.