go to post Scott Fadden · Oct 28, 2020 Thanks Eduard, I think I finally found the answer, use the correct class. Using %SYS.Journal.System instead of Config.Journal updating and reading the setting is very easy. returnValue = dbnative.classMethodValue("%SYS.Journal.System","SetPrimaryDirectory","/iris/journal/") print("Set Primary Directory: ", returnValue ) returnValue = dbnative.classMethodValue("%SYS.Journal.System","GetPrimaryDirectory") print("Get Primary Directory: ", returnValue ) Thanks for your reply.