Bug report
Bug description:
import tkinter as tk root = tk.Tk() print("background" in root)
Prints the following stack trace:
Traceback (most recent call last): File "/example.py", line 3, in <module> print("background" in root) ^^^^^^^^^^^^^^^^^^^^ File "/tkinter/__init__.py", line 1727, in cget return self.tk.call(self._w, 'cget', '-' + key) ~~~~^~~~~ TypeError: can only concatenate str (not "int") to str
The TypeError referencing concatenation of an int to a str is very misleading. Error messages that don't make sense can be very confusing especially for beginners who don't know about magic methods like __iter__ and __getitem__.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux