Hi all,

My current project need both Java and Python. For data analysis, I base on Pandas (data analysis tools for the Python programming language : http://pandas.pydata.org/index.html). Then to fetch the results to my java application, I need to invoke some python classes. And I hope Jython will help me to do that.

My very first Hello World Java Jython example worked  fine. I can call a python class, script in my java application. Howerver when I started implement some methods that invoke the Pandas modules, the problems arrive. 

Traceback (most recent call last):
  File "src\main\python\script\Pandas.py", line 1, in <module>
    from pandas.io.data import DataReader
  File "C:\Python27\Lib\site-packages\pandas\__init__.py", line 7, in <module>
    import numpy as np
  File "C:\Python27\Lib\site-packages\numpy\__init__.py", line 131, in <module>
    from _import_tools import PackageLoader
  File "C:\Python27\Lib\site-packages\numpy\_import_tools.py", line 1, in <module>
    import os
  File "C:\Python27\lib\os.py", line 63, in <module>
    import ntpath as path
  File "C:\Python27\lib\ntpath.py", line 12, in <module>
    import warnings
  File "C:\Python27\lib\warnings.py", line 8, in <module>
    import types
  File "C:\Python27\lib\types.py", line 36, in <module>
    BufferType = buffer
NameError: name 'buffer' is not defined

After some Google searchs, I am learning that Jython does not allow access to most Python extensions. Am I in this case ?

Thank you very much for any suggestions 

Best regards