Tkinter / Mac OS X Question (Aqua vs. X11)

[dmsbox2000-list1@yahoo.com]

I am running Mac OS X.  I have Tcl/Tk installed.  I can run the Aqua
version (TkAqua) of wish by typing 'wish' at a terminal prompt.  I can
run the X11 version (TkX11) of wish by typing 'wish8.4-X11' in an
x-term.  If I run python and import Tkinter it always grabs the TkAqua
version.  How can I get Tkinter to load the TkX11 version?

I want to be able to switch back and forth between the two at will.

Thanks
David