When writing the human-verified tests in idle_test.htest.py, we discovered that there is a different between Windows and Linux in focus shifting when opening an editor window from a visible root window. On Widows, I have to click on the editor window to enter anything. Saimadhav reports that on Linux, the editor already has the focus and is live.

Similarly, when I open Idle from console interpreter with
import idlelib.idle
the focus stay with the console and I have to click on the shell to enter code there. I suspect that this is also different on *nix. Can someone check?