Skip case-sensitivity tests for extension modules if _testcapi cannot be found.

diff --git a/Lib/importlib/test/extension/test_case_sensitivity.py b/Lib/importlib/test/extension/test_case_sensitivity.py
index 39e6facc9902c08d10d13f9ae16491604deccedc..3387e70e6108cf855bcbb0da1c47624ad92f40cf 100644 (file)
--- a/Lib/importlib/test/extension/test_case_sensitivity.py
+++ b/Lib/importlib/test/extension/test_case_sensitivity.py
@@ -32,6 +32,8 @@ class ExtensionModuleCaseSensitivityTest(unittest.TestCase):
 
 
 def test_main():
+    if ext_util.FILENAME is None:
+        return
     support.run_unittest(ExtensionModuleCaseSensitivityTest)