Hi, @sonko,
Let’s see if we can get to the bottom of the error. First question, what version of openHAB do you have installed? You should be running a recent 2.4.0-SNAPSHOT or the latest 2.4.0 milestone build.
So the hello_world.py you are trying to run is a copy of Script Examples/hello_world.py, which in turn is from the master branch Zip archive that you downloaded from GitHub. My guess (with little evidence to support my guess) is that you do not have a JSR223 startup delay script in place and all of the Jython support modules were loaded before OpenHAB’s JSR223 automation machinery was “ready.” On my system I have the file 000_0_delay_startup.py located in /etc/openhab/automation/jsr223/ that prevents the Jython support modules from loading until the JSR223 scripting subsystem is ready to go. The contents of that file are:
import time
from org.slf4j import Logger, LoggerFactory
logger = LoggerFactory.getLogger("org.eclipse.smarthome.model.script.Rules.jsr223")
logger.info("Startup: Checking for initialized context")
while True:
try:
scriptExtension.importPreset("RuleSupport")
if automationManager != None:
logger.info("Startup: context initialized... waiting 30s before allowing files to load")
break;
except:
pass
logger.info("Startup: Context not initialized yet... waiting 10s before checking again")
time.sleep(10)
time.sleep(30)
logger.info("Startup: Complete")
Try creating a copy of this script named 000_0_delay_startup.py and place it in /etc/openhab2/automation/jsr223/. Once you have done that, restart your system.
There is a thread here in which this is discussed. I’ll track it down and add a link in this reply when I find it. Found it,
That entire thread is worth reading.