How to execute Python script from Java?

Question

I can execute Linux commands like ls or pwd from Java without problems but couldn\'t get a Python script executed.

This is my code:

Answer 1

@Alper's answer should work. Better yet, though, don't use a shell script and redirection at all. You can write the password directly to the process' stdin using the (confusingly named) Process.getOutputStream().

Process p = Runtime.exec(
    new String[]{"python", "script.py", packet.toString()});

BufferedWriter writer = new BufferedWriter(
    new OutputStreamWriter(p.getOutputStream()));

writer.write("password");
writer.newLine();
writer.close();