TclError in tkinter

Question

So this is the code python doesn't seem to be too happy with me about:

def checkAnswer(self, clickedButton):
            self.valueOne = self.itemOne[self.component]
            self.valueTwo = self.itemTwo[self.component]

            if clickedButton == 'left':
                if self.valueOne >= self.valueTwo:
                    tkinter.messagebox.showinfo('Smart Cookie!', 'That\'s correct!')

                else:
                    tkinter.messagebox.showerror('Oh No!', 'That\'s incorrect!')

            elif clickedButton == 'middle':
                if self.valueOne - (self.valueOne * 0.1) <= self.valueTwo <= self.valueOne + (self.valueOne * 0.1) and self.valueTwo - (itemTwoComp * 0.1) <= self.valueTwo <= self.valueTwo + (self.valueTwo * 0.1):
                    tkinter.messagebox.showinfo('Smart Cookie!', 'That\'s correct!')

                else:
                    tkinter.messagebox.showerror('Oh No!', 'That\'s incorrect!')

            elif clickedButton == 'right':
                if self.valueTwo >= self.valueOne:
                    tkinter.messagebox.showinfo('Smart Cookie!', 'That\'s correct!')

                else:
                    tkinter.messagebox.showerror('Oh No!', 'That\'s incorrect!')


            showQuestion()


        tkinter.mainloop()
        showQuestion()

gui = ProgramGUI()

and this is the error I'm receiving:

Traceback (most recent call last):
  File "C:\Assignments\Assignment 2\FIddle.py", line 101, in <module>
    gui = ProgramGUI()
  File "C:\Assignments\Assignment 2\FIddle.py", line 99, in __init__
    showQuestion()
  File "C:\Assignments\Assignment 2\FIddle.py", line 60, in showQuestion
    self.lab11.configure(text = self.itemList[0]['Name'])
  File "C:\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 1330, in configure
    return self._configure('configure', cnf, kw)
  File "C:\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 1321, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: invalid command name ".2531617022640.2531617023144"

I'm not sure why I'm receiving this error at all, would very much appreciate it if anyone could identify the problem.

Bryan Oakley · Accepted Answer · 2016-10-30 19:33:12Z

1

showQuestion() is trying to modify a widget, but it is being called after the root window has been destroyed (eg: after mainloop() returns, which only happens when the root window has been destroyed). When the root window is destroyed, all other widgets are also destroyed.

edited Oct 30, 2016 at 19:33

answered Oct 30, 2016 at 17:52

Bryan Oakley

389k53 gold badges582 silver badges739 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Roxy Over a year ago

You're an absolute star, Bryan, thank-you. That's gone and fixed it and sorted out a few more issues I was having!

Collectives™ on Stack Overflow

TclError in tkinter

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related