Hello and Welcome to LinuxQuestions,
RHEL is not free. The subscription you paid for gives you access to the RHEL repositories which include the Python packages you need. If you haven't yet registered with Red Hat, you can do so by running:
Once registered you will be able to use yum to install what you need.
You can also put your money to work and ask for support from Red Hat. Looking forward to your participation in the forums. Have fun with Linux.