checking Python bindings for gtk2.4 (pygtk2>=2.3.4)... configure: error:

**** The python bindings for gtk 2.4 (pygtk2>=2.3.4) could not be found.

Warning: the following items did not execute (for gramps): com.apple.build com.apple.configure

any idea what's going wrong here? 
--
Paul Beard
contact info: www.paulbeard.org/paulbeard.vcf
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