[New-bugs-announce] [issue45957] _tkinter.TclError: expected boolean value but got ""

[Ali Amin-Nejad]

New submission from Ali Amin-Nejad <aanejad at hotmail.co.uk>:

On macOS, the following minimal example:

```
import tkinter as tk

root = tk.Tk()
button = tk.Button(root, text="Exit", command=root.destroy)
button.pack()
root.wm_overrideredirect(True)

root.mainloop()
```

yields the following stack trace:

```
Traceback (most recent call last):
  File "blah.py", line 6, in <module>
    root.wm_overrideredirect(True)
  File "/Users/ali/miniconda3/envs/bitfount/lib/python3.8/tkinter/__init__.py", line 2176, in wm_overrideredirect
    return self._getboolean(self.tk.call(
  File "/Users/ali/miniconda3/envs/bitfount/lib/python3.8/tkinter/__init__.py", line 1448, in _getboolean
    return self.tk.getboolean(string)
_tkinter.TclError: expected boolean value but got ""
```

----------
components: Tkinter, macOS
messages: 407494
nosy: amin-nejad, ned.deily, ronaldoussoren
priority: normal
severity: normal
status: open
title: _tkinter.TclError: expected boolean value but got ""
type: crash
versions: Python 3.8

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45957>
_______________________________________