os.isdir --> os.path.isdir
os.isdir --> os.path.isdir


Former-commit-id: d6caa36d04234db91abd2cc9ec937dfbd8f0fbf2 [formerly 584e05f62b22131c49dff163e9c2be00b79257c9] [formerly d6caa36d04234db91abd2cc9ec937dfbd8f0fbf2 [formerly 584e05f62b22131c49dff163e9c2be00b79257c9] [formerly 584e05f62b22131c49dff163e9c2be00b79257c9 [formerly 55aa453c81fa87255e639feda84c143d3560f4f2]]]
Former-commit-id: 10ef6355a748874a676dea614e08d407cfc00381
Former-commit-id: 95231b960736c0b559255ef4fe4560c5ed6ef2c8 [formerly 6347a54103d6998b7d35dc2f3305cb58650b147e]
Former-commit-id: eedc5176a6cfcdf6636da31cc75fc72827398abe
interrogator/corpkit,interrogator/corpkit