Linking to python packages that have not been built in to Salome's default python interpreter is not intuitive, but is otherwise straight forward.

Add a new file (extension .pth) containing the path to the site-packages of the other python installation you wish to use to Salome's python site-packages directory. There are two possible locations, depending on how Salome has been installed:

  1. If you used the older installation method, the root installation directory should have a folder called appli_V7_7_1 and then your site-packages is at ROOT/appli_V7_7_1/lib/python2.7/site-packages/salome.
  2. Otherwise the newer installation method, the installation directory will instead have a folder PREREQUISITES and then your site-packages is at ROOT/PREREQUISITES/INSTALL/Python-2.7.10/FROM_nothing/lib/python2.7/site-packages.