bpo-33559: Document changed repr of exceptions (GH-6943)

diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst
index cc762736a0c7cb3772330916898a0e3405202b77..b22e9143437f70ff4bc1544711309d6e46318a07 100644 (file)
--- a/Doc/whatsnew/3.7.rst
+++ b/Doc/whatsnew/3.7.rst
@@ -1238,6 +1238,9 @@ Changes in the Python API
   :func:`socket.fromshare` a socket :func:`~socket.socket.share`-ed in older
   Python versions.
 
+* ``repr`` for :exc:`BaseException` has changed not to include trailing comma
+  in the output. Mind that most exceptions are affected by this change.
+
 * ``repr`` for :class:`datetime.timedelta` has changed to include keyword arguments
   in the output. (Contributed by Utkarsh Upadhyay in :issue:`30302`.)