Windows can't run python script from within eclipse

Question

I'm on a Windows machine and using Eclipse. My java code is invoking a python script by using :

Process p = Runtime.getRuntime().exec("cmd /c e:\\dev\\CodeBase\\WebService\\src\\com\\rest\\service\\PythonScript.py");

On running the code it opens the prompt for choosing a program to run the script with. What can I do to make it run implicitly?

Check your PATH for env. variables. If you have Python in the path already, then prefix python to the path of your script; not cmd /c. It should like like python my_scriptpath.py in your command. — ha9u63a7
– ha9u63a7, Commented Nov 8, 2014 at 11:42

BartoszKP · Accepted Answer · 2014-11-08 11:42:31Z

1

Try running Python interpreter instead:

Process p = Runtime.getRuntime().exec("[PATH TO YOUR PYTHON DIR]\\python.exe e:\\dev\\CodeBase\\WebService\\src\\com\\rest\\service\\PythonScript.py");

Usually [PATH TO YOUR PYTHON DIR] is something like C:\\Python27\\ or C:\\Python34 depending on your Python version.

If you have Python directory added to your system PATH variable sole .exec("python ...") will suffice.

answered Nov 8, 2014 at 11:42

BartoszKP

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9 Comments

Natasha Over a year ago

That prompt doesn't come up now. But my output is blank. My .py file is simple - def main(): return "Hello World". Is this right?

BartoszKP Over a year ago

@Natasha No, this script won't do nothing. But it shouldn't be any problem for you to fix it: try searching "hello world in python" via google and you'll find lots of examples. You might want to add input() (or raw_input() for Python2) call at the end, so the window won't disappear immediately.

Natasha Over a year ago

I didnt get that part. what input?

BartoszKP Over a year ago

@Natasha So it will wait for the user to press the "enter" key, before the window disappears. It's not essential, if you see the console view in Eclipse after the program finishes - if yes, disregard that part. Otherwise, the script will run very fast, and the console will disappear before you will be able to see anything.

Natasha Over a year ago

I'm using the Eclipse console.

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Ryan · Accepted Answer · 2015-11-13 21:04:05Z

1

You will need to convert the .py file to .exe use Py2Exe. You can download it and follow the instructions to convert it.

answered Nov 13, 2015 at 21:04

Ryan

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