cleanup tools/run_tests directory
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 83cfc42..c14f18a 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -34,20 +34,21 @@
import argparse
import atexit
-import dockerjob
import itertools
-import jobset
import json
import multiprocessing
import os
import re
-import report_utils
import subprocess
import sys
import tempfile
import time
import uuid
+import python_utils.dockerjob as dockerjob
+import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
+
# Docker doesn't clean up after itself, so we do it on exit.
atexit.register(lambda: subprocess.call(['stty', 'echo']))