Tkinter 无效命令名称“.!button”

Question

When I run my tkinter code, I run into this error:

File "/Users/owen/PycharmProjects/Tutorials/Make7.py", line 147, in user_turn
    btn.config(command=partial(self.tile_prep, btn_n))
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/tkinter/__init__.py", line 1637, in configure
    return self._configure('configure', cnf, kw)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/tkinter/__init__.py", line 1627, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: invalid command name ".!button"

The line that causes the error is this:

btn.config(command=partial(self.tile_prep, btn_n))

I'm not sure what's causing the error. Originally, I used

btn['command'] = partial(self.tile_prep, btn_n)

I tried changing to .config() , but this didn't work. I'm not sure if it's a problem with partial . If so, is there another way to pass arguments into button commands? In this case, btn_n simply points to the button that was pressed.

Edit: I can't seem to reproduce the problem without including the entire code. Also, the error is very weird: I'm making a connect-4 program, and the error only occurs when the middle three squares in the bottom row are filled. I've looked through the code, and the inner workings seem to be working right, just the GUI component.

Edit 2: I was able to fix the issue by using .bind() instead of using the command argument. I'm still curious why this issue occurred, though.

Answer 1

You are calling multiple values in a button.So you have to intrigate it on a single function Such as

btn.config(command=lambda:[self.funcA(x, y)])

Try this it may solve your problem