i see a possible VERY BIG problem in the first post
this is CentOS 6.5 so having
all installed WITHOUT !!! having "yum-priorities" plugin installed and configured
IS going to cause problems !
and libpython2.7 is not installed in centos 6
this must be installed
and if a rpm NEEDS this then you can NOT use the source ( unless you convert it to a rpm install)
use one of the thirdparty repos that has python27
or rebuild a ptyhon27 SRC.rpm
also it is normally a rather bad idea to use the FULL name
"yum install par4all-1.4.3-1.x86_64.rpm"
that can cause all kinds of problems
yum install par4all
or if it is a local install from a downloaded rpm ( not recomended normally )
yum localinstall par4all