could you give use the debugging messages that can be found in *Help → Debug messages* after trying to run the script also? Also, is your Python effectively in */usr/bin*? try `which python3` in your terminal.
But @elextr is likely to have the right question and your terminal/terminal command isn't properly set up -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/1624#issuecomment-334331120
