Comment 6 for bug 1463623

fwiw, the same file from comment 2 also fails with the following Python extensions:
Visualize Path -> 'Dimensions' and 'Draw Handles' and 'Measure Path' and 'Number Nodes'.
Save As -> 'hpgl' and 'html 5' and 'Desktop Cutting Plotter dxf'.
possibly others, I stopped testing at this point