Calling python function from java . NEED HELP URGENT

[Geetu Kumari]

Hi

I want to call python function from java Class OR execute python file from java Class
if possible Please explain me with piece of code urgently .......

Thanks in advance,
Geeta

I tried for this ... but it not giving any error and not executing also .....

public class MyJavaClass
{
public static void main(String[] args)
{
try
{
System.out.println("start");
String file = "/home/geeta/Install/newEclipse/NoCrashPlease/testWebProject/src/pythonPrograms/test.py" ;
Process p =Runtime.getRuntime().exec("chmod -R 777 " + file);
p.waitFor();
p = Runtime.getRuntime().exec("python " +file);
p.waitFor();
System.out.println("end........................");
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

/* test.py contain */
print 'SUCCESS'

[Ulf Dittmer]

Instead of Runtime.exec(String) I'd recommend to use Runtime.exec(String[]). This and other tips on using Runtime.exec -like dealing with the process's streams- are explained in detail in the article "When Runtime.exec() doesn't" by Daconta (which is really required reading when using it).

[Campbell Ritchie]

Ulf Dittmer wrote:"When Runtime.exec() doesn't"

I think it's spelt "When Runtime.exec() won't", but as Ulf has said, you need to find it with Google and read it. It is a little easier now the ProcessBuilder class has been introduced, but only slightly easier. And don't go saying your request is urgent.

This question is too difficult for the beginners' forum. Moving.

[Ernest Friedman-Hill]

There's also a rather nice Java implementation of Python called Jython, which you can embed directly in your Java program.

[Geetu Kumari]

Thank you,
Ulf Dittmer and Campbell Ritchie



" When Runtime.exec() won't " It is really helpful.

Thanks again !!!