Can someone explain why tcl/tk is
compiled using:

%configure --disable-threads

This breaks some python programs, which use threads and Tk, with the following error:

Unhandled exception in thread started by <function updateClock at 0x7fb431cc28c0>
Traceback (most recent call last):
  File ".//08-clock-bezier.py", line 188, in updateClock
    setClock (h,m,s)
  File ".//08-clock-bezier.py", line 173, in setClock
    clock.itemconfigure("hands", fill=colors[sector])
  File "/usr/lib64/python2.5/lib-tk/Tkinter.py", line 2243, in itemconfigure
    return self._configure(('itemconfigure', tagOrId), cnf, kw)
  File "/usr/lib64/python2.5/lib-tk/Tkinter.py", line 1188, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: out of stack space (infinite loop?)

Please, check this issue:

http://mail.python.org/pipermail/python-bugs-list/2008-September/060100.html

It happens on F10 and F11.

Thanks.