python — how to return button position (x,y)

Question

how to return button position

import tkinter as tk
def do_popup():
    root.menu.post(??,??)
root = tk.Tk()
root.btn1 = tk.Button(root, text="POPUP", command=do_popup)
root.btn1.grid(row=1, column=1)
root.menu = tk.Menu(root, tearoff=0)
root.menu.add_command(label="a")
root.menu.add_command(label="b")
root.menu.add_command(label="c")

how to get the POPUP button's x and y ???

Answer 1

You're looking for Tkinter's winfo_rootx() and winfo_rooty() methods, which return pixel coordinates relative to the screen's upper left corner.

def do_popup():
    x, y = root.btn1.winfo_rootx(), root.btn1.winfo_rooty()
    print (x, y)

More: http://effbot.org/tkinterbook/widget.htm#Tkinter.Widget.winfo_rootx-method