Disabled _curses modules on MacOSX. The curses version is a 1994 BSD curses, far too old for _cursesmodule.c.
But what if someone installs their own, better version of curses, e.g. in /usr/local? Maybe you should only disable it if it's darwin *and* if it's in a standard location? Or if the header file contains a certain characteristic string?
--Guido van Rossum (home page: http://www.python.org/%7Eguido/)