[Python] How can I add a "show details" button to a tkinter messagebox?

I have a Python script which uses tkinter.messagebox to display an error message with traceback details if an unexpected exception occurs.

import tkinter.messagebox as tm
import traceback

try:
1/0
except Exception as error:
tm.showerror(title="Error",
message="An error has occurred: '" + str(error) + "'.",
detail=traceback.format_exc())




Displaying tracebacks this way has a few drawbacks.

• Traceback details aren't helpful for the average user.
• Testers can't easily select and copy text from a messagebox
• Complex errors can have large tracebacks which span dozens of lines.

Instead of displaying error details by default, I would like to add a "show details" button which would display more information in a read-only text field.



How can I add a "show details" button to a tkinter messagebox?

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