How to Pass Arguments to Tkinter Button Commands?

Passing Arguments to Button Commands in Tkinter

In Tkinter, when creating a button, you can specify a command option to define the action executed upon button press. However, it may be desirable to pass arguments to this command.

Inline Lambda Function

One solution is to utilize lambdas, which are anonymous functions. Here's an example:

import Tkinter as Tk

win = Tk.Toplevel()
frame = Tk.Frame(master=win).grid(row=1, column=1)

someNumber = 10

# Pass an argument to the action method
button = Tk.Button(master=frame, text='press', command= lambda: action(someNumber))

In this code, the lambda function captures the value of someNumber and passes it as an argument to the action method when the button is pressed.

Wrapper Method

Another approach is to create a wrapper method that accepts an arbitrary number of arguments and then calls the original action method with the appropriate arguments:

import Tkinter as Tk

def action_wrapper(*args):
    action(*args)

someNumber = 10

button = Tk.Button(master=frame, text='press', command= action_wrapper(someNumber))

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