Proposed fix.

On Sat, 10 Apr 2021 at 02:22, Shitikanth Kashyap <shitikanth1@gmail.com>
wrote:

> Steps to reproduce:
> 1. emacs -Q
> 2. Open any python file
> 3. Press "C-c C-p"  to start interpreter
> 4. Press "C-c C-z" from the file's window to switch to interpreter
> 5. Go back to file's window with "C-x o" and repeat from 4 a few times.
>
> There is notable lag (sometimes as much as a few seconds) between
> pressing the keybinding "C-c C-z" in file's window before the cursor
> appears to be ready on the interpreter's window. The state of the cursor
> in the two windows after the command appears to be indeterministic and
> inconsistent.
>
> The issue seems to be that the display of the two windows is not updated
> even though internally emacs has changed the focus to the correct
> window. For example, it is possible to start typing in the interpreter
> window immediately after the command, even though the cursor does not
> seem to ready.
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