PEP 343 writeup
  2.5a2 changed the generator decorator back to
'contextmanager' when the __context__ method was
dropped (without context objects involved, the name
contextfactory didn't make sense any more).

xmlcore vs xml
  The notes about the introduction of xmlcore seem a
little misleading (implying that 'import xml' will fail
on a base 2.5 installation). Isn't the xml namespace a
combination of both xmlcore and PyXML?

wsgiref
  The example should either import make_server from
wsgiref.simple_server, or else call
simple_server.make_server

AST compiler documentation
  People interested in the AST compiler should be
directed towards Brett's writeup in PEP 339.
http://www.python.org/dev/peps/pep-0339/
 
Remove of PyRange_New
  It may be worth noting that you can use
PyObject_Call(PyRange_Type, etc...) instead (as per
recent python-dev discussion).