My class cannot find a python file in the jar

Question

I have a jar file that launches a python script. It works if my jar file is at the root of the working directory. If I move it out of the working directory, it cannot find the python script anymore. Why does my call to find the script file not look inside the jar? I use ./(the path). Why does it automatically look in the working directory? I thought it would be self-contained.

Are you looking for the python script as a file? or as a resource? You might want to share more information about your problem because right now all anyone can do is guess. My guess is that you're trying to read the Python script as a file, and files don't exist inside of jars. — Hovercraft Full Of Eels
– Hovercraft Full Of Eels, Commented Dec 6, 2011 at 20:00
My code looks like Process p = r.exec("python ./myPath/myScript.py"); I am not sure, that means as a file? — smuggledPancakes
– smuggledPancakes, Commented Dec 6, 2011 at 20:03
it's a system command, so yes, you're looking for a file. Please check out edit to my answer below. — Hovercraft Full Of Eels
– Hovercraft Full Of Eels, Commented Dec 6, 2011 at 20:06

Community · Accepted Answer · 2017-05-23 12:12:54Z

1

Reposting my guess as an answer:
Are you looking for the python script as a file? or as a resource? You might want to share more information about your problem because right now all anyone can do is guess. My guess is that you're trying to read the Python script as a file, and files don't exist inside of jars. To solve this, either read the Python script as a file outside of Java, or look for it as a resource inside of the jar. If the latter, I'm not sure if you can run the script or not.

For more, please see this link: stackoverflow: can-i-make-a-jar-execute-a-python-script

Another clever option: stackoverflow: how-do-you-invoke-a-python-script-inside-a-jar-file-using-python

edited May 23, 2017 at 12:12

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answered Dec 6, 2011 at 20:03

Hovercraft Full Of Eels

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2 Comments

smuggledPancakes Over a year ago

What about if I converted my python script to Jython and had that execute from the Main class? Right now my Main class is trying to execute a Python script.

smuggledPancakes Over a year ago

I'll investigate Jython now, I thought I was so close, it all worked until I put my Java code in a jar file.

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