1 files changed, 5 insertions, 3 deletions
diff --git a/tox.ini b/tox.ini
index 4998edd17..1e1b7c174 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,9 +5,11 @@ minversion = 3.18.0
 
 [testenv]
 basepython = python3
-setenv = VIRTUAL_ENV={envdir}
-         PYTHONWARNINGS=default::DeprecationWarning
-         OS_TEST_PATH=heat/tests
+setenv =
+  OS_TEST_PATH=heat/tests
+  PYTHONDONTWRITEBYTECODE=1
+# TODO(stephenfin): Remove once we bump our upper-constraint to SQLAlchemy 2.0
+  SQLALCHEMY_WARN_20=1
 usedevelop = True
 deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/requirements.txt