Description of problem:
Glupy doesn't get built when packaged.
If python3 is installed with EPEL on centos, the configure.ac uses python3 but doesnt have python3 devel. so it skips building glupy.

Solution is to not install python3 by adding epel on centos or install python3 devel or use python2 over python3. 

We choose to use python2 to python3 as glupy was not python3 compatible. 

Version-Release number of selected component (if applicable):
5.7

How reproducible:
install python3 on centos and try to package it.

Steps to Reproduce:
1.install python3 
2.do a ./autogen.sh and then ./configure
3../configure shows that glupy is not built.

Actual results:
glupy not built

Expected results:
glupy should be built

Additional info:
This is a corner case.