blog  MacPython/Leopard - PythonInfo Wiki.

Feb 2009

Some people have legitimate reasons for wanting to install IDLE on Leopard. E.g., even though Leopard's Xcode 3.0 (and later) supports Python development, it does so in a heavyweight, support-all-of-Cocoa fashion. And educators teaching Python who wish to do so in a platform-agnostic way may also be best served by IDLE.