import module error: calling python script using jython in a java program

Question

I am trying to execute a python file from netbeans using jython in a java program. My code is like this:

PythonInterpreter.initialize(System.getProperties(), System.getProperties(), 
                             new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("as1.py");

error is:

Traceback (most recent call last):
  File "as1.py", line 2, in <module>
    import datetime
ImportError: No module named datetime

and also interdependent python files also not importing those are in same directory.

like:

PythonInterpreter.initialize(System.getProperties(), System.getProperties(), new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("calen.py");

python files are:

calen.py:

from as1 import * 
print ( "I am printing" + str(Moh(1000).run()))

as1.py:

from time import time
import datetime
class Moh:
    def __init__(self, n):  
        self.n = n

    def run(self):
        data = [1,2,3,4,5]
        start = time()
        for i in range(self.n):
            data.append(i)
        end = time()
        return ( end - start )/self.n

if __name__ == "__main__":
    print ( "I am printing" + str(Moh(1000).run()))

error is:

Traceback (most recent call last):
  File "calen.py", line 1, in <module>
    from as1 import * 
ImportError: No module named as1

what version of jython are you using?

user3012759
– user3012759

2014-08-20 14:38:18 +00:00
Commented Aug 20, 2014 at 14:38 — user3012759
– user3012759, Commented Aug 20, 2014 at 14:38
Thanks for asking - Jyhton version 2.5.3

mohan
– mohan

2014-08-21 12:53:45 +00:00
Commented Aug 21, 2014 at 12:53 — mohan
– mohan, Commented Aug 21, 2014 at 12:53
Hope this link:[stackoverflow.com/a/483165/1982677] helps.

kvivek
– kvivek

2014-08-23 09:36:51 +00:00
Commented Aug 23, 2014 at 9:36 — kvivek
– kvivek, Commented Aug 23, 2014 at 9:36

MajidL · Accepted Answer · 2015-02-23 18:03:56Z

3

It is essential to set "python.path" for the PythonInterpreter so that it can load your the as1 module. To do that, you have to initialize PythonInterpreter in this way:

Properties properties = System.getProperties();
properties.put("python.path", PATH_TO_PARENT_DIRECTORY_OF_AS1_PY);
PythonInterpreter.initialize(System.getProperties(), properties, new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("calen.py");

answered Feb 23, 2015 at 18:03

MajidL

7316 silver badges11 bronze badges

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

Collectives™ on Stack Overflow

import module error: calling python script using jython in a java program

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related