[PyQt] change input keyboard layout

[roman.orlov at zoho.eu]

I can not change the input keyboard layout in a PyQt5 app.

Example, I write in English. Everything is fine. My keyboard is English, 
I see English letters in PyQt5.
http://imgur.com/0iGgvv1

I switch the layout to Russian. I want to see Russian letters in PyQt5 
app, but I see English again. It's bad.
http://imgur.com/W16Vx5a

What can I do so that when I switch to Russian, I see Russian letters?