There is an issue while installing some of the packages for python. They show 'No package available' message while trying to do yum install . They are these: python-psycopg, python-reportlab, graphviz, python-psycopg2, pychart, pydot, python-lxml.
The OS is CentOS5.5, python2.4 and postgres8.x. Its for installing Openerp. Their forum was not of much help.
Any help on it is much appreciated, thanks.