More idiomatic Python.
More idiomatic Python.

SUSE/teuthology,SUSE/teuthology,ceph/teuthology,t-miyamae/teuthology,zhouyuan/teuthology,robbat2/teuthology,robbat2/teuthology,dmick/teuthology,michaelsevilla/teuthology,ivotron/teuthology,t-miyamae/teuthology,tchaikov/teuthology,zhouyuan/teuthology,caibo2014/teuthology,tchaikov/teuthology,ktdreyer/teuthology,dmick/teuthology,SUSE/teuthology,ktdreyer/teuthology,ivotron/teuthology,michaelsevilla/teuthology,dreamhost/teuthology,dreamhost/teuthology,dmick/teuthology,yghannam/teuthology,ceph/teuthology,yghannam/teuthology,caibo2014/teuthology