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import Tkinter as tk

root = tk.Tk()
tk.Label(text="Fenster ohne Rahmen").pack()
root.overrideredirect(True)
root.mainloop()

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#!/usr/bin/env python
import Tkinter as tk
   
if __name__ == "__main__":  
    root = tk.Tk()
    root.attributes("-transparentcolor", "pink")
    root.config(bg="pink")
    root.overrideredirect(True)
    root.geometry("{0}x{1}+0+0".format(root.winfo_screenwidth(),
                                       root.winfo_screenheight()))

    for side in ["left", "right", "top", "bottom"]:
        bt = tk.Button(root, text="Hello World", command=root.destroy)
        bt.pack(side=side)
        
    root.mainloop()

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#!/usr/bin/env python
import Tkinter as tk
import math

DELAY = 100

def get(center, radius, velocity):
    x = int(radius * math.cos(velocity) + center[0])
    y = int(radius * math.sin(velocity) + center[1])
    return x, y

def rotate(cv, rect, size, center, radius, velocity):
    x, y = get(center, radius, velocity)
    cv.coords(rect, x, y, x + size[0], y + size[1])
    cv.after(DELAY, rotate, cv, rect, size, center, radius, velocity + 1)
    
if __name__ == "__main__":    
    root = tk.Tk()
    screen_width = root.winfo_screenwidth()
    screen_height = root.winfo_screenheight()
    
    root.attributes("-transparentcolor", "pink")
    root.overrideredirect(True)
    root.geometry("{0}x{1}+0+0".format(screen_width, screen_height))

    cv = tk.Canvas(root, bg="white")
    cv.pack(expand=True, fill="both")
    
    width = 3
    radius = math.hypot(screen_width, screen_height)
    center = center_x, center_y = screen_width / 2, screen_height / 2
    
    for velocity in xrange(0, 360):
        x, y = get(center, radius, velocity)
        cv.create_line(x, y, center_x, center_y, width=width, fill="pink")
               
    for side in ["left", "right", "top", "bottom"]:
        bt = tk.Button(cv, text="Hello World", command=root.destroy)
        bt.pack(side=side)

    size = width, height = 250, 250
    radius = 300
    center = center_x - (width / 2), center_y - (height / 2)
    
    #amount = 8
    #for angle in xrange(amount):
    #    velocity = angle * (math.pi / (amount / 2))    
    #    rect = cv.create_rectangle(0, 0, width, height, fill="pink")
    #    rotate(cv, rect, size, center, radius, velocity)
        
    root.mainloop()

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root.attributes("-transparentcolor", "pink")

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_tkinter.TclError: bad attribute "-transparentcolor": must be -alpha, -topmost, -zoomed, or -fullscreen