Hi. I'm trying to install numpy/scipy on a rhel system with python v2.4.3 I'm following the information from various sites. My goal is to be able to successfully get numpy/scipy up/running, with a few basic tests. I'm using the tar files for: drwxr-xr-x 6 root root 4096 Oct 31 19:30 . drwxr-xr-x 32 root root 4096 Oct 31 12:26 .. drwxr-xr-x 12 root root 4096 Oct 31 18:29 ATLAS -rw-r--r-- 1 root root 3192987 Oct 31 12:35 atlas3.8.0.tar.gz drwxr-x--- 8 13686 731 4096 Oct 31 18:11 lapack-3.1.1 -rw-r--r-- 1 root root 10407595 Feb 26 2007 lapack-3.1.1.tgz drwxrwxr-x 4 test test 4096 Oct 31 19:43 numpy-1.0.3.1 -rw-r--r-- 1 root root 1500255 Oct 31 12:49 numpy-1.0.3.1.tar.gz -rw-r--r-- 1 root root 54 Oct 31 12:27 readme.txt drwxrwxr-x 3 test test 4096 Sep 22 01:14 scipy-0.6.0 -rw-r--r-- 1 root root 6572954 Oct 31 12:52 scipy-0.6.0.tar.gz I believe I've successfully downloaded/built/installed the atlas/lapack apps. I'm using a RHEL4 system with a single 1.8GHz. processor. I did a: "python setup.py install" for numpy, and it appeared to finish. I then did a: "python setup.py install" for scipy, and got the following err: [root@mfgtest3 <Branch GodzillaTest1.1.2> scipy-0.6.0]# python setup.py install Traceback (most recent call last): File "setup.py", line 53, in ? setup_package() File "setup.py", line 28, in setup_package from numpy.distutils.core import setup File "/usr/lib/python2.4/site-packages/numpy/__init__.py", line 39, in ? import core File "/usr/lib/python2.4/site-packages/numpy/core/__init__.py", line 5, in ? import multiarray ImportError: /usr/lib/python2.4/site-packages/numpy/core/multiarray.so: undefined symbol: PyUnicodeUCS2_FromUnicode I can't find anything via google to indicate what's the cause... Any thoughts/comments would be seriously helpful!! Could this be an issue of incompatible versions between numpy/scipy?? thanks -sam