[pygtk] Implementing command history with a gtk.Entry

[N. French]

I have a class that packs a gtk.Entry with a gtk.TextView to make an
interactive console.  Works great but I would like to add a command
history; when the user presses up or down I want to go modify the
entry's text to whatever I have stored in the history.

My problem is:  how do I catch the up/down arrow keypresses?  I was
looking at the gtk.Entry "move-cursor" signal but it wasn't clear how I
would distinguish an up or down arrow from left or right, or if this
even catches cursor movement other than left and right.

Any input is appreciated.

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