Using Popen() in Python 3.6.2 to open a JAVA class is failing -


this question has answer here:

this line of code in python file seems return error:

could not find or load main class testclass

testclass.java in same folder .py file. not sure going wrong. ideas?

process = popen(['java', 'testclass'], stdout=pipe)

edit: compiling java file worked, getting following error when trying run it. tested java file directly , worked fine, seems issue python java versions? running java 8 latest build now, , latest build of python...

exception in thread "main" java.lang.unsupportedclassversionerror: testclass : unsupported major.minor version 52.0    @ java.lang.classloader.defineclass1(native method)    @ java.lang.classloader.defineclass(unknown source)    @ java.security.secureclassloader.defineclass(unknown source)    @ java.net.urlclassloader.defineclass(unknown source)    @ java.net.urlclassloader.access$100(unknown source)    @ java.net.urlclassloader$1.run(unknown source)    @ java.net.urlclassloader$1.run(unknown source)    @ java.security.accesscontroller.doprivileged(native method)    @ java.net.urlclassloader.findclass(unknown source)    @ java.lang.classloader.loadclass(unknown source)    @ sun.misc.launcher$appclassloader.loadclass(unknown source)    @ java.lang.classloa`enter code here`der.loadclass(unknown source)    @ sun.launcher.launcherhelper.checkandloadmain(unknown source)

your python script looking compiled .class file, while have uncompiled .java file.


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