Tkinter window focusing or selecting

[Bob Greschke]

I have a program with many "forms" (Toplevel windows with entry fields).
Sometimes when I .deiconify() and .lift() a form that is a child of another
form, but that just got buried under other forms it comes up 'not active'
(dimmed). I have to click on the title bar (or anywhere in the window)
before I can start entering stuff into the entry fields. It doesn't seem to
happen all of the time, which I don't understand. Doing a .focus_set()
after the .lift() fixes it, but then Tkinter loses track of which entry
field the cursor was in when the window got covered up. Is there something
else I should be calling after the .deiconify() and .lift() to make sure the
window get 'activated' (or what ever that state is)? This is on Linux at
this point.

Thanks!

Bob