But bridges can be built between enemies
From http://developer.apple.com/cocoa/pyobjc.html
"...PyObjC is just one of many Cocoa bridges. Apple has offered its Java bridge since Mac OS X 10.0, and Mac OS X Tiger 10.4 rolled out a JavaScript bridge which allows Dashboard Widgets to communicate with Objective-C objects. Third-party developers have also created bridges for C#, Lisp, Perl, Ruby and Smalltalk to name a few. And, of course, Python.
PyObjC's scope ranges all the way from a simple imperative scripting environment for dynamically interacting with Cocoa objects, all the way to building fully-fledged custom applications. It supports the latest technologies, such as Key-Value Observing, Core Data and Xgrid. PyObjC's maturity is unmatchedit's been around longer than even Apple's Java bridge (it originated on NeXTstep). Finally, while PyObjC is a third-party bridge, it is well known internally at at Apple, and boasts an exceptionally talented group of enthusiastic developers."