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python-2.7tkintertkmessagebox

I can't seem to get tkMessageBox.askokcancel in Python 2.7 to get to work

I have written the following code

    closeButton = Button(self, text="Close",command=self.askyesno)
    closeButton.pack(side=RIGHT, padx=5, pady=5)
    okButton = Button(self, text="OK")
    okButton.pack(side=RIGHT)

def askyesno():
    res = tkMessageBox.askokcancel(title="Quit", message="Do you want to quit?")
    if res == "yes":
    self.quit()

Whenever I press the close button, python crashes with the message Type error: askyesno() takes no arguments, 1 given. There are many examples on the Internet like mine. I'm sure they work. What am I doing wrong. All the examples I found have this problem and the documentation for tkMessageBox is not providing any examples.

Solution

  • It's not the tkMessageBox, it's your function. You should define it like this:

    #def askyesno():    # Not like this
def askyesno(self):

    Assuming it's a member of a class.