canvas не обновляет текст

Хочу выводить текст поверх всех окон. Написал такой код, но текст не обновляется канвасом:

# IMPORTS
import tkinter
from threading import Thread

# CONFIGURATION

RESOLUTION = (1920, 1080, 1)

# CLASSES
class GetResolution:
    def __init__(self):
        self.width = "1920"
        self.height = "1080"
        self.k = int(self.height) / 1080

    @property
    def resolution(self):
        return int(self.width), int(self.height), float(self.k)

class InitOverlay():
    def __init__(self, text):
        self.root = tkinter.Tk()
        self.root.overrideredirect(True)
        self.root.wm_attributes("-transparentcolor", "white")
        self.root.wm_attributes("-topmost", True)
        self.root.wm_attributes("-disabled", True)
        self.canvas = tkinter.Canvas(self.root, width = RESOLUTION[0], height = RESOLUTION[1], bg = "white", highlightthickness = 0)     
        self.canvas.pack()
        self.text=text
        #self.launch()
        self.run()

    def run(self):
        self.redraw_canvas()
        self.root.mainloop()

    def redraw_canvas(self):
        self.canvas.delete("all")
        print(t)
        self.canvas.create_text(100,100, text=self.text[0], fill="red")
        self.canvas.after(1000, self.redraw_canvas)


# MAIN
def main(text):
    global RESOLUTION
    RESOLUTION = GetResolution().resolution
    InitOverlay(text)

# BODY
if __name__ == "__main__":
    t = ["1234567890"]
    o = Thread(target=InitOverlay, args=(t))
    o.start()
    #main(t)
    for i in range(100000000000000):
        print(i)
        t[0]="%s"%i