Issue 1106316. post_mortem()'s parameter, traceback, is now
optional: it defaults to the traceback of the exception that is currently
being handled.
diff --git a/Doc/library/pdb.rst b/Doc/library/pdb.rst
index 2b28ae0..0d2a936 100644
--- a/Doc/library/pdb.rst
+++ b/Doc/library/pdb.rst
@@ -107,9 +107,12 @@
being debugged (e.g. when an assertion fails).
-.. function:: post_mortem(traceback)
+.. function:: post_mortem([traceback])
- Enter post-mortem debugging of the given *traceback* object.
+ Enter post-mortem debugging of the given *traceback* object. If no
+ *traceback* is given, it uses the one of the exception that is currently
+ being handled (an exception must be being handled if the default is to be
+ used).
.. function:: pm()