如何在Tkinter中分别启用输入和输出控件的右键粘贴和复制功能？

from tkinter import Tk, Text, Menu

root = Tk()
input_text = Text(root)
output_text = Text(root)

def copy_text():
    selected_text = input_text.get("sel.first", "sel.last")
    root.clipboard_clear()
    root.clipboard_append(selected_text)

def paste_text():
    clipboard_text = root.clipboard_get()
    output_text.insert("insert", clipboard_text)

input_menu = Menu(root, tearoff=0)
input_menu.add_command(label="复制", command=copy_text)
input_menu.add_command(label="粘贴", command=paste_text)

output_menu = Menu(root, tearoff=0)
output_menu.add_command(label="复制", command=copy_text)
output_menu.add_command(label="粘贴", command=paste_text)

input_text.bind("<Button-3>", lambda e: input_menu.post(e.x_root, e.y_root))
output_text.bind("<Button-3>", lambda e: output_menu.post(e.x_root, e.y_root))

input_text.pack()
output_text.pack()
root.mainloop()