This step may not be required. I didn't have to do this when I updated my host machine.

yum -y update
 
yum group install "Development tools"

Add the EPEL (Extra Packages for Enterprise Linux) repository to your system:

yum install epel-release

Finally, install Python 3 and the Pip package manager:

yum install python34
 
yum install python34-pip

If the Python version is incorrect, you can locate the available version with a Yum search, as follows:

yum search python3