diff --git a/tests/__init__.py b/tests/__init__.py
index b4f509dda7..b4aa41b24e 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -18,7 +18,4 @@
 
 from googleapiclient import _helpers as util
 
-
-def setup_package():
-    """Run on testing package."""
-    util.positional_parameters_enforcement = "EXCEPTION"
+util.positional_parameters_enforcement = util.POSITIONAL_EXCEPTION