Hi, In the first example of the "PEP 409: Suppressing exception context" section, I read "from None...". http://docs.python.org/dev/whatsnew/3.3.html#pep-409-suppressing-exception-context It's confusing because I don't remember what was the last choice for the PEP: None or ... :-) The reST "code" looks correct in Doc/whatsnew/3.3.rst: ... raise AttributeError(attr) from None ... Victor