At the end of the Python program the JavaScript machinery is still active, which is important because it makes it possible to rotate and zoom the camera to examine the 3D scene created by the Python program. Also, there are still messages being sent between the server and the browser. You can kill the flicker by clicking the black box at the top of the notebook page, and you can kill everything by reloading the browser page or restarting the kernel.
I know nothing about pyqt. It is possible to use VPython outside of Jupyter. One way is to run the program at glowscript.org, and another is to use Classic VPython, which is no longer being developed (see vpython.org for more info). Do read this: http://vpython.org/contents/announcements/evolution.html -- You received this message because you are subscribed to the Google Groups "Project Jupyter" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jupyter/59fb640a-bc19-40e2-9509-699e08b8bc08%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
