[Pythonmac-SIG] Why Do I Explicitly Need MacPython

[Robert Love]

I see version 2.5 is released today.  I see there is a packaged  
version called MacPython.  My question is why do I need it?  Or  
rather if I install it, what happens to my existing python that came  
with OSX?  I see that by default MacPython installs in /usr/local/bin  
but what about the frameworks that came with OSX developer.  Are they  
still used?

I'd like a simple explanation of what MacPython does for me and my  
existing installation.  I did check the FAQ but didn't see any thing  
like this.

Thanks for all info.