How to provide input to the screen reader in a Tk application?

[Aivar Annamaa <aivar annamaa gmail com>]

Hi!

I have a Python+Tkinter application (https://thonny.org) for which I'd 
like to add some screen-reader support. Unfortunately Tk doesn't provide 
required information to at-spi 
(https://core.tcl.tk/tk/tktview?name=0e294d9604 and 
https://mail.python.org/pipermail/tkinter-discuss/2013-September/003480.html).

I found Tka11y (https://pypi.org/project/Tka11y/) based on Papi 
(http://ocemp.sourceforge.net/papi.html), but they haven't been updated 
for a while. When I tried a minimal example with my Python 2.7 I got 
core dump.

Do you know any  other options?

Can I somehow provide direct input to the screen reader without 
involving a widget toolkit at all? For example, can I send a text to 
narrate whenever the user moves from one line to another in the editor?

best regards,
Aivar