python3-veusz.helpers 3.5.3-2 (amd64 binary) in ubuntu lunar

 Veusz is a 2D and 3D scientific plotting and graphing package,
 designed to produce publication-ready PDF, SVG, Postscript and bitmap
 output. Veusz provides a GUI, command line and scripting interface
 (based on Python) to its plotting facilities. The plots are built
 using an object-based system to provide a consistent interface.
 .
 This package includes the architecture-specific parts of the Python 3 plotting
 module.