diff --git a/spec/python/test_debug_enum_name.py b/spec/python/test_debug_enum_name.py
index 2421f2953..554d05382 100644
--- a/spec/python/test_debug_enum_name.py
+++ b/spec/python/test_debug_enum_name.py
@@ -4,7 +4,6 @@
 
 class TestDebugEnumName(unittest.TestCase):
     def test_debug_enum_name(self):
-        r = DebugEnumName.from_file("src/fixed_struct.bin")
-
-        # this test is meaningful only for languages that have --debug and do
-        # not save enum type info
+        with DebugEnumName.from_file('src/fixed_struct.bin') as r:
+            # this test is meaningful only for languages that have --debug and do
+            # not save enum type info
diff --git a/spec/python/test_switch_cast.py b/spec/python/test_switch_cast.py
index 8f9b3f3cf..a0a8f9268 100644
--- a/spec/python/test_switch_cast.py
+++ b/spec/python/test_switch_cast.py
@@ -4,8 +4,7 @@
 
 class TestSwitchCast(unittest.TestCase):
     def test_switch_cast(self):
-        r = SwitchCast.from_file("src/switch_opcodes.bin")
-
-        self.assertEqual(r.first_obj.value, "foobar")
-        self.assertEqual(r.second_val, 0x42)
-        # unable to test "err_cast" here
+        with SwitchCast.from_file('src/switch_opcodes.bin') as r:
+            self.assertEqual(r.first_obj.value, "foobar")
+            self.assertEqual(r.second_val, 0x42)
+            # unable to test "err_cast" here