Description of problem:
Gluster upstream regression tests are failing with centos 7.7 with python3
package delivered. The python test utility files are not python3 compatible.

Following are the test utility python files

/bugs/distribute/overlap.py
./bugs/nfs/socket-as-fifo.py
./features/ipctest.py
./utils/create-files.py
./utils/getfattr.py
./utils/gfid-access.py
./utils/libcxattr.py
./utils/pidof.py
./utils/setfattr.py
./utils/changelogparser.py

Each needs to be tested and made py2/py3 compatible

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

How reproducible:
Always

Failures:

https://build.gluster.org/job/centos7-regression/6317/consoleFull &https://build.gluster.org/job/centos7-regression/6316/consoleFull