Logged In: YES user_id=31435 Marc-Andre, can you review this? I think you have more experience building C APIs for modules than anyone else (while I don't have any). There's certainly no objection to giving datetime a C API, and Guido already said he doesn't want to rely on that Martin changed datetime to be built as part of the core (in 2.3 on Windows, datetime.pyd was a distinct DLL; in CVS, datetime is compiled into the core DLL now). Anthony, you probably need to add doc and test patches. _testcapimodule.c holds tests of things you can only get at from C.