The window focus is controlled by your window manager and you don't have much control over this from within Tk. It tries to protect you from differences between systems and as a result you lose some functionality.
You could try playing with withdrawing and deiconifying the windows, if you do this in the right order you might be able to change their relative stacking order.
In reply to Re: window focus and stacking in TK
by kevin_i_orourke
in thread window focus and stacking in TK
by nop
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