Python script can't find dependencies when running from java code

Question

I got server which is starting process with python script and when it is running I got error:

    Traceback (most recent call last):
  File "save_boxes.py", line 2, in <module>
    import cv2
ImportError: No module named cv2

In fact I got opencv2 installed and script is working when I run it from terminal, have no ideas how to fix it, appreciate any advices, thank you!

The code Im running the script is:

 Process process;
            try {
                final char dm = (char) 34;
                ProcessBuilder pb = new ProcessBuilder("./runC.sh", "myArg1", "myArg2");
                Map<String, String> env = pb.environment();
                env.put("VAR1", "myValue");
                env.remove("OTHERVAR");
                env.put("VAR2", env.get("VAR1") + "suffix");
                pb.directory(new File("/home/user/IdeaProjects/MyServer/"));
                process = pb.start();
        
                int exitCode = process.waitFor();
                if (exitCode != 0) {
                    throw new IOException("Command exited with " + exitCode);
                }
            } catch (Exception e) {System.out.println ("error message: " + e.getLocalizedMessage());}

The script code:

#!/bin/bash

python my_script.py

Are you sure python command is pointing to python 3 or whatever version you are using? Normally, the command python points to python 2 so you might have to use python3 command to run python 3 interpreter instead. — Quanta
– Quanta, Commented Jun 20, 2020 at 16:10
when Im running from terminal "python" command is running ok, but I've tried change python to python3 in script and it worked, thanks a lot man, you may write an answer and I will accept it — Danila says Reinstate Monica
– Danila says Reinstate Monica, Commented Jun 20, 2020 at 16:13
can you show the output of "which python" run from terminal and run from script? When it is not the same output then you are running different versions. — IjonTichy
– IjonTichy, Commented Jun 20, 2020 at 16:20

Quanta · Accepted Answer · 2020-06-20 16:16:01Z

2

Try to use python3. On most of the systems, python is a link to the Python 2 interpreter. :)

answered Jun 20, 2020 at 16:16

Quanta

6325 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Python script can't find dependencies when running from java code

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related