On Tue, Jun 23, 2009 at 2:29 PM, Edward Grefenstette<egre...@gmail.com> wrote: > I have a java prog I need to run at some point during the execution of > a python module. > > The path to the folder containing the all the relevant java stuff > (which runs fine from the command line) is stored in pkgpath. The > relevant code is this: > >>>> os.chdir(pkgpath) >>>> arglist = "java -Xmx1024m SemanticVectorsEvaluator ." + indexpath >>>> SemVectPackage = Popen(arglist, stdout=PIPE, shell=True) >>>> SemVectPackage.wait() > > Here indexpath is the path to a particular index file (usually > indexpath = "./indexfolder/fileindex"), so that effectively Popen > should be running the equivalent of the shell command: > - > java -Xmx1024m SemanticVectorsEvaluator ../indexfolder/fileindex > - > which, again, runs fine in the terminal. > > However running the program returns the following error (echoed from > shell, doesn't interrupt prog): > - > Exception in thread "main" java.lang.NoClassDefFoundError: > SemanticVectorsEvaluator > - > > I have no idea why this isn't working. Anyone have any suggestions as > to how I might troubleshoot this?
Have you tried?: arglist = ["java", "-Xmx1024m", "SemanticVectorsEvaluator", "." + indexpath] SemVectPackage = Popen(arglist, stdout=PIPE) SemVectPackage.wait() Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
