Issue #26198: ValueError is now raised instead of TypeError on buffer
overflow in parsing "es#" and "et#" format units.  SystemError is now raised
instead of TypeError on programmical error in parsing format string.
diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py
index 96666d1..1a743fd 100644
--- a/Lib/test/test_capi.py
+++ b/Lib/test/test_capi.py
@@ -488,10 +488,10 @@
                 _testcapi.parse_tuple_and_keywords(tuple_1, dict_b,
                     format.encode("ascii"), keywords)
                 when_not_skipped = False
-            except TypeError as e:
+            except SystemError as e:
                 s = "argument 1 (impossible<bad format char>)"
                 when_not_skipped = (str(e) == s)
-            except RuntimeError as e:
+            except (TypeError, RuntimeError):
                 when_not_skipped = False
 
             # test the format unit when skipped