Design Notes

Alternatives Drawing Libraries

Instead of Matplotlib, the following libraries could be used

Casey Duckering drawSvg
Martin Renou ipycanvas

Parsing yaml files expressions

In a point of time, we need to verify the syntax of yaml sketch definition, here are some parser which might help

Paul McGuire pyparsing

in fact this is solved (an now implemented this summer 8/5/2020) with the ast module see the function sketchParse in the shapes.py module