No pep8 on machine running vdsm_master_pep8_gerrit ?!
It will be hard to make the pep8 job working without pep8 binary:
+ pep8 --version
/tmp/hudson2850293266998682700.sh: line 5: pep8: command not found
See http://jenkins.ovirt.org/job/vdsm_master_pep8_gerrit/22318/console
Nir