Tried executing following python script body & Module directory as  import json import java.io from org.apache.commons.io import IOUtils from java.nio.charset import StandardCharsets from org.apache.nifi.processor.io import StreamCallback #from google.cloud import bigquery #from google.oauth2 import service_account import google class ModJSON(StreamCallback): def __init__(self): pass def process(self, inputStream, outputStream): text = IOUtils.toString(inputStream, StandardCharsets.UTF_8) obj = json.loads(text) print(text) outputStream.write(bytearray(json.dumps(obj, indent=4).encode('utf-8'))) flowFile = session.get() if (flowFile != None): flowFile = session.write(flowFile, ModJSON()) flowFile = session.putAttribute(flowFile, "filename", flowFile.getAttribute('filename')+'_translated.json') session.transfer(flowFile, REL_SUCCESS) session.commit()   Module Directory  /Users/bonthala/Library/Python/2.7/lib/python/site-packages/     Received the following error 2022-08-13 00:14:56,948 ERROR [Timer-Driven Process Thread-6] o.a.nifi.processors.script.ExecuteScript ExecuteScript[id=8df016ea-0182-1000-35d7-40765b666df2] Failed to properly initialize Processor. If still scheduled to run, NiFi will attempt to initialize and run the Processor again after the 'Administrative Yield Duration' has elapsed. Failure is due to org.apache.nifi.processor.exception.ProcessException: Could not instantiate script engines: java.io.IOException: Mark invalid ↳ causes: java.io.IOException: Mark invalid at java.base/java.io.BufferedReader.reset(BufferedReader.java:517) at org.python.core.ParserFacade.parseExpressionOrModule(ParserFacade.java:133) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:320) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:316) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:308) at org.python.jsr223.PyScriptEngine.compileScript(PyScriptEngine.java:87) at org.python.jsr223.PyScriptEngine.compile(PyScriptEngine.java:76) at org.apache.nifi.script.impl.JythonScriptRunner.<init>(JythonScriptRunner.java:42) at org.apache.nifi.script.ScriptRunnerFactory.createScriptRunner(ScriptRunnerFactory.java:56) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:250) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:211) at org.apache.nifi.processors.script.ExecuteScript.setup(ExecuteScript.java:176) at jdk.internal.reflect.GeneratedMethodAccessor552.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:78) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:55) at org.apache.nifi.controller.StandardProcessorNode.lambda$initiateStart$6(StandardProcessorNode.java:1653) at org.apache.nifi.engine.FlowEngine$3.call(FlowEngine.java:123) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834) java.io.IOException: java.io.IOException: Mark invalid ↳ causes: javax.script.ScriptException: java.io.IOException: java.io.IOException: Mark invalid ↳ causes: org.apache.nifi.processor.exception.ProcessException: Could not instantiate script engines org.apache.nifi.processor.exception.ProcessException: Could not instantiate script engines at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:256) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:211) at org.apache.nifi.processors.script.ExecuteScript.setup(ExecuteScript.java:176) at jdk.internal.reflect.GeneratedMethodAccessor552.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:78) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:55) at org.apache.nifi.controller.StandardProcessorNode.lambda$initiateStart$6(StandardProcessorNode.java:1653) at org.apache.nifi.engine.FlowEngine$3.call(FlowEngine.java:123) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: javax.script.ScriptException: java.io.IOException: java.io.IOException: Mark invalid at org.python.jsr223.PyScriptEngine.scriptException(PyScriptEngine.java:226) at org.python.jsr223.PyScriptEngine.compileScript(PyScriptEngine.java:93) at org.python.jsr223.PyScriptEngine.compile(PyScriptEngine.java:76) at org.apache.nifi.script.impl.JythonScriptRunner.<init>(JythonScriptRunner.java:42) at org.apache.nifi.script.ScriptRunnerFactory.createScriptRunner(ScriptRunnerFactory.java:56) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:250) ... 16 common frames omitted Caused by: org.python.core.PyException: null at org.python.core.Py.JavaError(Py.java:552) at org.python.core.ParserFacade.fixParseError(ParserFacade.java:107) at org.python.core.ParserFacade.parseExpressionOrModule(ParserFacade.java:136) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:320) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:316) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:308) at org.python.jsr223.PyScriptEngine.compileScript(PyScriptEngine.java:87) ... 20 common frames omitted Caused by: java.io.IOException: Mark invalid at java.base/java.io.BufferedReader.reset(BufferedReader.java:517) at org.python.core.ParserFacade.parseExpressionOrModule(ParserFacade.java:133) ... 24 common frames omitted   Python sys path ~ » python bonthala@Offfice-Admins-MacBook-Pro WARNING: Python 2.7 is not recommended. This version is included in macOS for compatibility with legacy software. Future versions of macOS will not include Python 2.7. Instead, it is recommended that you transition to using 'python3' from within Terminal. Python 2.7.16 (default, Jul 5 2020, 02:24:03) [GCC 4.2.1 Compatible Apple LLVM 11.0.3 (clang-1103.0.29.21) (-macos10.15-objc- on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.path ['', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/Users/bonthala/Library/Python/2.7/lib/python/site-packages', '/Library/Python/2.7/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', '/Library/Python/2.7/site-packages/virtualenv-20.0.27-py2.7.egg', '/Library/Python/2.7/site-packages/importlib_resources-3.0.0-py2.7.egg', '/Library/Python/2.7/site-packages/filelock-3.0.12-py2.7.egg', '/Library/Python/2.7/site-packages/distlib-0.3.1-py2.7.egg', '/Library/Python/2.7/site-packages/appdirs-1.4.4-py2.7.egg']   Can anyone help me to resolve the error and import the modules to the script ?   ... 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