python3-gaphas: python3-gaphas (Gaphas is the diagramming widget library for Python.)
python3-gaphas:
python3-gaphas: Gaphas is a library that provides the user interface component 
python3-gaphas: (widget) for drawing diagrams. Diagrams can be drawn to screen and 
python3-gaphas: then easily exported to a variety of formats, including SVG and PDF. 
python3-gaphas: Want to build an app with chart-like diagrams? Then Gaphas is for 
python3-gaphas: you! Use this library to build a tree, network, flowchart, or other 
python3-gaphas: diagrams.
python3-gaphas: 
python3-gaphas: https://github.com/gaphor/gaphas
python3-gaphas: