Does anyone who does #GUI programming and uses or has users who use a #ScreenReader or #BrailleTerminal have the scoop on how well Tk (the GUI toolkit of Tcl, accessed via Tkinter in Python) integrates with these tools?

I saw some references to #accessibility as an area of focus in the 8.5 roadmap, and with 9.0 out now, I'd really like to use it - but I need to be able to support screen reader users.