I tried to run these codes from this topic-
Sketches are running both for py and java with no error as well display window show-up but with no result or graphics or output.
I turned off internet connection so that firewall issue might not invade…so I did not stop firewall…but problem remain same.Could you help please? Thanks in advance.
I just tested the sketch on a Windows and an Osx machine and it runs fine on both with Processing 3.5.3.
I am not well versed in this area but it might be an issue on your side (drivers compatibility, conflicting programs, installation error… ?) and as a first step I would suggest to reinstall both Processing and Python mode on your computer and see if the problem persists.