如何以编程方式将焦点设置为按钮小部件？

document.getElementById("myButton").focus();

import tkinter as tk

def set_focus():
    button.focus()

root = tk.Tk()

button = tk.Button(root, text="Click me")
button.pack()

button.bind<Enter>", set_focus)

root.mainloop()

button.Focus();

button.requestFocus();

button.becomeFirstResponder()