Python, Linux, default search places.

[Frantisek.Fridrich at rubena.cgs.cz]

Hello.

Thank you to Karim, thank you to Wildman for response. 

I will describe my problem in more detail. Python on my computer is 
installed in /usr directory. My Python contains additional modules such as 
numpy, scipy, matplotlib, h5py, … . Python runs correctly.

Third party program opens Python but I can’t import numpy and so on. 
Python can’t find numpy. After modifying PYTHONPATH, Python can find numpy 
but shows the following error message:
/usr/lib64/python2.6/lib-dynload/math.so: undefined symbol: PyFPE_jbuf
I think Python can’t find some libraries. 

I don’t know what the third party program does with environment variables 
but I think I should correctly define environment either in shell before I 
start third party program or in Python in third party program.

That is the reason why I would like to know default:
 - search path for libraries,
 - search path for Python modules,
in case LD_LIBRARARY_PATH and PYTHONPATH is empty not defined.

I think that default
 - search path for executables
is easier task. I also would like to know the correct default definition. 

OS: SUSE Linux Enterprise Server 11. 
HW: HP DL160 Gen8 SFF CTO.
Python 2.6.

Frantisek

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