here is a script I made (with help from hanu) that finds all newly installed files.
install Numeric Python then run the script with Numeric as an argument and it will create a Numeric folder in your home with all the installed files. You may need to clean any extra files from it like logs and such that were created around the time Numeric was installed
#!/bin/bash
pkg=$1
tmp="$HOME/$pkg"
dirs=`ls /|grep -v dev|grep -v proc|grep -v sys|grep -v mnt|grep -v home|gre p -v root`
if [ "x$pkg" = "x" ];then
echo "usage $0 packagename"
exit 1
fi
cd $HOME
mkdir -p $tmp
rm pkglist 2>/dev/null
for i in $dirs;do
find /$i -cmin -5 -not -type d >>pkglist
done
tar cvzTf pkglist $1.tgz
cd $tmp
explodepkg ../$1.tgz
rm ../$1.tgz
Uelsk8s