diff --git a/tox.ini b/tox.ini
index 3c186b8e657..6807042ce69 100644
--- a/tox.ini
+++ b/tox.ini
@@ -72,6 +72,9 @@ setenv = {[testenv]setenv}
          # workaround for DB teardown lock contention (bug/1541742)
          OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:600}
          OS_TEST_PATH=./neutron/tests/fullstack
+# Because of issue with stestr and Python3, we need to avoid too much output
+# to be produced during tests, so we will ignore python warnings here
+         PYTHONWARNINGS=ignore
 deps =
   {[testenv:functional]deps}
 commands =