Tips&Tricks #Draggabale windows works well

from tkinter import *
root = Tk()

class WindowDraggable():

    def __init__(self, root):
        self.root = root
        root.bind('<ButtonPress-2>', self.StartMove)
        root.bind('<ButtonRelease-2>', self.StopMove)
        root.bind('<B2-Motion>', self.OnMotion)

    def StartMove(self, event):
        self.x = event.x
        self.y = event.y

    def StopMove(self, event):
        self.x = None
        self.y = None

    def OnMotion(self,event):
        x = (event.x_root - self.x - self.root.winfo_rootx() + self.root.winfo_rootx())
        y = (event.y_root - self.y - self.root.winfo_rooty() + self.root.winfo_rooty())
        root.geometry("+%s+%s" % (x, y))

WindowDraggable(root)

root.mainloop()