TypeError: exitfunc() missing 1 required positional argument: 'self'

[venkateshrathod]

HI All,

I am new to the python, i am trying to call a method defined in the same class but getting an error as
" return self.func(*args)
TypeError: exitfunc() missing 1 required positional argument: 'self'"

The code is below : Trying to write a simple Menu window using tkinter.

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from tkinter import * import tkinter.messagebox from tkinter.filedialog import askopenfilename   class menudiaplay:       def __init__(self):         self.exit = exit       def function1(self):      print("Menu is clicked")         def openfile(self):       name = askopenfilename()       print(name)       def function3(self):        print("Undo is done")       def exitfunc(self):         self.exit = tkinter.messagebox.askquestion("Question", "Really want to exit")         if self.exit == 'yes':             self.root.destroy()         else:             print("Hello welcome back")         root = Tk()     mymenu = Menu(root)     root.config(menu=mymenu)         filesubmenu = Menu(mymenu)       mymenu.add_cascade(label="File", menu=filesubmenu)       filesubmenu.add_cascade(label="New Project", command=function1)     filesubmenu.add_cascade(label="New", command=function1)     filesubmenu.add_cascade(label="open File", command=askopenfilename)     filesubmenu.add_cascade(label="Power save Mode", command=function1)     filesubmenu.add_cascade(label="Exit", command=exitfunc)       editsubmenu = Menu(mymenu)       mymenu.add_cascade(label="Edit", menu=editsubmenu)       editsubmenu.add_cascade(label="Undo", command=function3)       toolbar = Frame(root, bg="light pink")     insertbutton = Button(toolbar, text="Insert Files", command=function1)     insertbutton.pack(side=LEFT, padx=2, pady=3)       printbuttopn = Button(toolbar, text="Print", command=function1)     printbuttopn.pack(side=LEFT, padx=2, pady=3)       toolbar.pack(side=TOP, fill=X)       status = Label(root, text="This is the status", bd=1, relief=SUNKEN, anchor=W)     status.pack(side=BOTTOM, fill=X)       root.mainloop()     b = menudiaplay()

Please help me.Thanks in advance.

[Larz60+]

change:

1	filesubmenu.add_cascade(label="Exit", command=exitfunc)

to:

1	filesubmenu.add_cascade(label="Exit", command=self.exitfunc)

[venkateshrathod]

Getting error as,

filesubmenu.add_cascade(label="Exit", command=self.exitfunc)
NameError: name 'self' is not defined

[Larz60+]

there are many things wrong with this script.
You are not using class properly.

much of what is here is outside of the class.
Use:

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from tkinter import * import tkinter.messagebox from tkinter.filedialog import askopenfilename     class menudiaplay:     def __init__(self, parent):         self.parent = parent         self.exit = exit         mymenu = Menu(self.parent)         self.parent.config(menu=mymenu)           filesubmenu = Menu(mymenu)           mymenu.add_cascade(label="File", menu=filesubmenu)           filesubmenu.add_cascade(label="New Project", command=self.function1)         filesubmenu.add_cascade(label="New", command=self.function1)         filesubmenu.add_cascade(label="open File", command=askopenfilename)         filesubmenu.add_cascade(label="Power save Mode", command=self.function1)         filesubmenu.add_cascade(label="Exit", command=self.exitfunc)           editsubmenu = Menu(mymenu)           mymenu.add_cascade(label="Edit", menu=editsubmenu)           editsubmenu.add_cascade(label="Undo", command=self.function3)           toolbar = Frame(self.parent, bg="light pink")         insertbutton = Button(toolbar, text="Insert Files", command=self.function1)         insertbutton.pack(side=LEFT, padx=2, pady=3)           printbuttopn = Button(toolbar, text="Print", command=self.function1)         printbuttopn.pack(side=LEFT, padx=2, pady=3)           toolbar.pack(side=TOP, fill=X)           status = Label(self.parent, text="This is the status", bd=1, relief=SUNKEN, anchor=W)         status.pack(side=BOTTOM, fill=X)       def function1(self):         print("Menu is clicked")       def openfile(self):         name = askopenfilename()         print(name)       def function3(self):         print("Undo is done")       def exitfunc(self):         self.exit = tkinter.messagebox.askquestion("Question", "Really want to exit")         if self.exit == 'yes':             self.parent.destroy()         else:             print("Hello welcome back")   def main():     root = Tk()     menudiaplay(root)     root.mainloop()   if __name__ == '__main__':     main()