I'm on Mac. I've put some debugging prints into the EvtExec routine to print out the values of pathPyc and pathPy. See screenshot. It seems the path to the scripts is being built incorrectly.

Hope this gives a clue...

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)