Create puias-computational.repo file: :
$ vim /etc/yum.repos.d/puias-computational.repo
Paste the following code into the above file: :
[PUIAS_6_computational]
name=PUIAS computational Base $releasever - $basearch
mirrorlist=http://puias.math.ias.edu/data/puias/computational/$releasever/$basearch/mirrorlist
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-puias
Download and import the Repo GPG key: :
$ cd /etc/pki/rpm-gpg/
$ wget -q http://springdale.math.ias.edu/data/puias/6/x86_64/os/RPM-GPG-KEY-puias
$ rpm --import RPM-GPG-KEY-puias
Install Python: :: $ yum install python27 python27-devel python27-libs python27-setuptools