Python Tkinter Menu not executing on click

Question

I have a menu that when clicked should run a function. There are no errors but when the user clicks on the menu it does not do anything.

After reading another stack overflow question I added in lamda functions to the command however it does the same thing both with and without the lambda. Python Tkinter Menu Command Not Working

menubar = Menu(self.master)
self.master.config(menu=menubar)

menubar.add_command(label = "Add Items", command= lambda: self.Add_Items)
menubar.add_command(label = "Make A Purchase", command= lambda: self.Transactions)
menubar.add_command(label = "Make A Return", command= lambda: self.Returns)

This is the menu

def Add_Items(self):
    label = tk.Label(self, text="Add Items")
    label.grid()

This is the function that it should run.

What am I missing?

The answer below by @FrainBr33z3 fixes the issue and the code runs (technically) however no labels are added to the frame despite me calling grid. — Callie Lewis
– Callie Lewis, Commented Mar 17, 2020 at 11:48
indeed it does. The label is drawn on the window with the text Add Items. Maybe there is an issue with some other part of your code. Anyhow, as the answer solves your problem, it is always better to open another question and not form a chain here — FrainBr33z3
– FrainBr33z3, Commented Mar 17, 2020 at 11:53
Thank you, I just wanted to check it wasn't something stupid I had done. I will try and see what I have done @FrainBr33z3 — Callie Lewis
– Callie Lewis, Commented Mar 17, 2020 at 12:01

FrainBr33z3 · Accepted Answer · 2020-03-17 10:51:13Z

1

The error occurs as there is a lack of parenthesis () in the command option with lambda. Do either one of the following:

menubar.add_command(label = "Add Items", command = Add_Items)

OR

menubar.add_command(label = "Add Items", command = lambda: Add_Items())

answered Mar 17, 2020 at 10:51

FrainBr33z3

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