diff -r d62e57958e7c Lib/test/test_format.py --- a/Lib/test/test_format.py Mon Jun 06 02:49:54 2016 +0000 +++ b/Lib/test/test_format.py Mon Jun 06 10:05:08 2016 +0200 @@ -274,7 +274,7 @@ test_exc('%d', '1', TypeError, "%d format: a number is required, not str") test_exc('%x', '1', TypeError, "%x format: an integer is required, not str") test_exc('%x', 3.14, TypeError, "%x format: an integer is required, not float") - test_exc('%g', '1', TypeError, "a float is required") + test_exc('%g', '1', TypeError, "must be real number, not str") test_exc('no format', '1', TypeError, "not all arguments converted during string formatting") test_exc('%c', -1, OverflowError, "%c arg not in range(0x110000)")