how to scroll a Tix ScrolledWindow

Using Python, how can I programmatically scroll (not using the scrollbars) the window in a Tix ScrolledWindow? The normal way would be to call xview / yview, but those calls do not seem to be available. Googling sugg开发者_运维知识库est that it is not possible at all, but I hope for something better.

st = tix.ScrolledText(parent)
st.text.see('end')