Fix the formatting of KeyboardInterrupt -- a bad issubclass() call.
diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index 22c0456..1b59f98 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -103,6 +103,12 @@
import sys
sys.exc_traceback.__members__
+ def test_base_exception(self):
+ # Test that exceptions derived from BaseException are formatted right
+ e = KeyboardInterrupt()
+ lst = traceback.format_exception_only(e.__class__, e)
+ self.assertEqual(lst, ['KeyboardInterrupt\n'])
+
def test_main():
run_unittest(TracebackCases)