With tkinter on Python you can use the following trick to raise a window

root.lift()
root.attributes('-topmost',True)
root.after_idle(root.attributes,'-topmost',False)

However, on kde plasma it appears not to work. Instead when you set '-topmost' to false the window is lowered again.

Here is some code that demonstrates the behaviour.

import tkinter as tk

window = tk.Tk()
ok = tk.Button(window, takefocus=tk.YES, text="raise after delay")
ok.pack()

state = {"mouse_on_button": True}

def handle_enter(_):
    state["mouse_on_button"] = True

def handle_leave(_):
    state["mouse_on_button"] = False

def handle_click(_):
    if state["mouse_on_button"]:
        run()

ok.bind("<Enter>", handle_enter)
ok.bind("<Leave>", handle_leave)
ok.bind("<ButtonRelease-1>", handle_click)


def run():
    print("Lowering")
    window.after(1000, raise_window)
    print("Done")


def raise_window():
    #window.lift()
    window.attributes('-topmost', True)
    window.after(500, remove_topmost)

def remove_topmost():
    window.attributes('-topmost', False)


window.mainloop()

How do I raise a window with tkinter on kde? One work around is to call wmctrl - which seems to be able to raise windows, but I would prefer the solution to be cross platform?

About my system

plasma version: 5.27.11, kde framework version: 5.115.0, qt: 5.15.13. I'm using X11.