Issue 7911: unittest.TestCase.longMessage defaults to True for improved failure messages by default
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py
index bb337f1..227879c 100644
--- a/Lib/unittest/case.py
+++ b/Lib/unittest/case.py
@@ -245,7 +245,7 @@
# objects used in assert methods) will be printed on failure in *addition*
# to any explicit message passed.
- longMessage = False
+ longMessage = True
# This attribute sets the maximum length of a diff in failure messages
# by assert methods using difflib. It is looked up as an instance attribute