There is an upgrade available for python and for swig and there is an error in PyQuante.<br><br>The upgrade package for python 2.5 is <a href="http://www.python.org/ftp/python/2.5/Python-2.5.tar.bz2">here</a>.&nbsp; Once you install you&#39;ll have to run it as 
python2.5 instead of just python.&nbsp; You&#39;ll probably want to rebuild your scipy and numpy packages as well.&nbsp; I&#39;ll post the instructions for changing the python command so that it links to python2.5 rather than python2.4
 on the wiki soon.<br><br>The update for the swig 1.3.31 is <a href="http://sourceforge.net/project/showfiles.php?group_id=1645&amp;package_id=8156&amp;release_id=465283">here.</a> You&#39;ll need this if you upgrade to python2.5
 because the older versions don&#39;t work with 2.5.&nbsp; Once you download the package it has instruction in the tar file that will walk you through the installation.<br><br>In PyQuante, anyone who&#39;s receiving the error about &#39;from numpy import matrixmultipy, transpose&#39; must change it to &#39;from Numeric import matrixmultipy, transpose&#39;&nbsp; It should work then.
<br><br>Good luck,<br>James Whitfield<br><br><br>-- <br>James D Whitfield<br>Graduate Student, Chemical Physics<br>Department of Chemistry and Chemical Biology<br>Harvard University<br><br>tel: 301-520-7847