Tk Source Code

Thank you, Christopher.  This ticket got away from me, and I had to
rediscover the solution you had proposed here when I worked on
[e94c8bc845].

I just tested the python script in this ticket, using the tip of
core-8-6-branch, and I can confirm that every time I press the button
the current time appears in Pasteboard Viewer.  So I think I can
close this one now.

Incidentally, in case you hadn't noticed this, I finally managed to
convince Ned Deily to embed Tcl.framework and Tk.framework inside of
Python.framework.  This means that you can move those frameworks aside
and replace them with symlinks to /Library/Frameworks/Tcl.framework
and /Library/Frameworks/Tk.framework.  That allows testing tkinter
against the current tip of whatever version of Tk Python happens to
be using.  (Hopefully that will be 9.0.2 before too long!)