+See http://trac.cython.org/cython_trac and http://wiki.cython.org/enhancements
+
+
-- The Original Pyrex Todo List --
DONE - Pointer-to-function types.
Catch floating point exceptions?
-Check that forward-declared non-external extension types
+Check that forward-declared non-external extension types
are defined.
Generate type test when casting from one Python type