rpm -qa | grep python- | grep 2.6
rpm -ivh --force ftp://mirror.switch.ch/pool/4/mirror/scientificlinux/6.5/x86_64/updates/fastbugs/python-2.6.6-52.el6.x86_64.rpm

root@151-80-237-83 [~]# rpm -qa | grep python- | grep 2.6
libxml2-python-2.6.26-2.1.25.el5_11
python-elementtree-1.2.6-5
root@151-80-237-83 [~]# rpm -ivh --force ftp://mirror.switch.ch/pool/4/mirror/scientificlinux/6.5/x86_64/updates/fastbugs/python-2.6.6-52.el6.x86_64.rpm
Retrieving ftp://mirror.switch.ch/pool/4/mirror/scientificlinux/6.5/x86_64/updates/fastbugs/python-2.6.6-52.el6.x86_64.rpm
warning: /var/tmp/rpm-xfer.GJRp4V: Header V4 DSA signature: NOKEY, key ID 192a7d7d
error: Failed dependencies:
        libc.so.6()(64bit) is needed by python-2.6.6-52.el6.x86_64
        libc.so.6(GLIBC_2.2.5)(64bit) is needed by python-2.6.6-52.el6.x86_64
        libdl.so.2()(64bit) is needed by python-2.6.6-52.el6.x86_64
        libm.so.6()(64bit) is needed by python-2.6.6-52.el6.x86_64
        libpthread.so.0()(64bit) is needed by python-2.6.6-52.el6.x86_64
        libpython2.6.so.1.0()(64bit) is needed by python-2.6.6-52.el6.x86_64
        libutil.so.1()(64bit) is needed by python-2.6.6-52.el6.x86_64
        python-libs(x86-64) = 2.6.6-52.el6 is needed by python-2.6.6-52.el6.x86_64
        rpmlib(FileDigests) <= 4.6.0-1 is needed by python-2.6.6-52.el6.x86_64
        rpmlib(PayloadIsXz) <= 5.2-1 is needed by python-2.6.6-52.el6.x86_64