Thanks for the response @jsensharma    I do not want point to a python script file and invoke the interpreter.   I have scenario where python code is present in flowfile attribute or a variable and want to run it in ExecuteStreamCommand processor. I can not use ExecuteScript processor because it invokes Jython based interpreter. Am using ExecuteStreamCommand processor as I want to explicitly invoke Python 3.5 interpreter.   If there is no workaround, What is standard way for having script location. Placing the script file in NiFi server might be risk because other users might accidentally modify/delete it. How to avoid it? ... View more