Steve Menard wrote: > skn wrote: > >> Hello, >> >> I have written a very simple java class file, which invokes a Python >> script >> using JEP. >> >> Code snippet:- >> ------------------- >> Jep jep = new Jep(false); >> jep.runScript("C:\\temp\\testscript.py"); >> jep.close(); >> >> Now inside this Python script I want to make Java calls using JPype. >> If I use startjvm() inside this Python script, a Runtime Error >> (exception) >> is thrown. >> Also tried attachThreadToJVM(), but doesn't work, again Runtime Error. >> >> Any clues as to how I could achieve my goal?? >> The interaction shown below should happen in a single process. >> >> JAVA ==> jep ==> PYTHON ==> jpype ==> JAVA >> >> Regards, >> skn >> >> > > You're trying to do something I hope to make possible somewhere down the > road ... > > As of today, I do not think it is possible. JPype does not provide a way > to initialize the JVM-bridge system except for startJvm .. which seems > to be prohibited when a JVM is already running. > > AttachThreadToJVM will only work once the JVM-bridge system has been > initialize. > > I will look into providing a sister method to startJVM to attach to the > currently running JVM instead of starting a new one. IF it does not > require major changes I will release it as 0.5.1. If you'd like you can > submit an enhancement request on the JPype sourceforge page, so this > doesn't get lost. > > >
OK .. it now works. There are a few caveats that cannot be resolved until either JEP and JPype can somehow cooperate or I finish what I started and basically fold the JEP functionality in JPype. I will release the new functionality in as version 0.5.1. The "gotchas" are going to be in a readme-jep.txt file. -- Steve Menard -------------------- Maintainer of http://jpype.sourceforge.net -- http://mail.python.org/mailman/listinfo/python-list