I still get the "error converting to loadable format" message. I can run the python script from the command line and it does work. I canand have modified the .pygr script to produce other outputs in .png, .jpg, .ps, etc.
without problem.But inside LyX, regardless of what I do to define the converter, I can not get the image
to render nor can I produce a .pdf output from the LyX doc. Something is not right. I am using LyX 2.0.1 Phil