fix regression reported by @cyfdecyf in #1454 (#1517)
diff --git a/tests/test_virtual_functions.py b/tests/test_virtual_functions.py
index 2a92476..5ce9abd 100644
--- a/tests/test_virtual_functions.py
+++ b/tests/test_virtual_functions.py
@@ -369,3 +369,9 @@
assert obj.unlucky_number() == -7
assert obj.lucky_number() == -1.375
assert obj.say_everything() == "BT -7"
+
+
+def test_issue_1454():
+ # Fix issue #1454 (crash when acquiring/releasing GIL on another thread in Python 2.7)
+ m.test_gil()
+ m.test_gil_from_thread()