Using ctypes to access OS X frameworks

I have been asked in private email if ctypes can be used to access OS X
frameworks.  I googled around a bit and found these pages:

http://developer.apple.com/samplecode/CallMachOFramework/CallMachOFramework.html

http://developer.apple.com/samplecode/CallMachOFramework/listing2.html

Remember that I know nearly nothing about macs, but by reading these
pages I got the impression that the key functions here are
LoadFrameworkBundle() and CFBundleGetFunctionPointerForName(), which
seem to play roles similar to dl_open()/dl_sym() or
LoadLibrary()/GetProcAddress().

Apart from that, I really do not know if this is a niche covered by
PyObjC, or would ctypes have a place here?

The background, for me at least, is that ctypes still lacks critical
mass on non-windows systems.  In the meantime I have started learning to
run and debug code on some x86 platforms (some linuxes, openbsd), but
not on the mac.

Thomas



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