HOWTO · Tkinter

How to Bind Multiple Commands to Tkinter Button

This tutorial introduces how to bind multiple commands to Tkinter button. It will execute multiple commands when the button is pressed.

By Jinku HuPublished 2019-11-26Updated 2024-02-02
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In this tutorial, we will demonstrate how to bind multiple commands to a Tkinter button. Multiple commands could be executed after the button is clicked.

Bind Multiple Commands to Tkinter Button

The Tkinter button has only one command property so that multiple commands or functions should be wrapped to one function that is bound to this command.

We could use lambda to combine multiple commands as,

def command():
    return [funcA(), funcB(), funcC()]

This lambda function will execute funcA, funcB, and funcC one by one.

labmda Bind Multiple Commands to Tkinter Button Example

try:
    import Tkinter as tk
except:
    import tkinter as tk


class Test:
    def __init__(self):
        self.root = tk.Tk()
        self.root.geometry("200x100")
        self.button = tk.Button(
            self.root,
            text="Click Me",
            command=lambda: [self.funcA(), self.funcB(), self.funcC()],
        )
        self.button.pack()

        self.labelA = tk.Label(self.root, text="A")
        self.labelB = tk.Label(self.root, text="B")
        self.labelC = tk.Label(self.root, text="C")

        self.labelA.pack()
        self.labelB.pack()
        self.labelC.pack()

        self.root.mainloop()

    def funcA(self):
        self.labelA["text"] = "A responds"

    def funcB(self):
        self.labelB["text"] = "B responds"

    def funcC(self):
        self.labelC["text"] = "C responds"


app = Test()

Tkinter bind multiple commands to button

Combine Functions to One Single Function in Tkinter

def combineFunc(self, *funcs):
def combinedFunc(*args, **kwargs):
for f in funcs:
f(*args, **kwargs)

return combinedFunc

The above function defines a function inside a function and then returns the function object.

for f in funcs:
    f(*args, **kwargs)

It executes all the functions given in the parenthesis of combineFunc.

try:
    import Tkinter as tk
except:
    import tkinter as tk


class Test:
    def __init__(self):
        self.root = tk.Tk()
        self.root.geometry("200x100")
        self.button = tk.Button(
            self.root,
            text="Click Me",
            command=self.combineFunc(self.funcA, self.funcB, self.funcC),
        )
        self.button.pack()

        self.labelA = tk.Label(self.root, text="A")
        self.labelB = tk.Label(self.root, text="B")
        self.labelC = tk.Label(self.root, text="C")

        self.labelA.pack()
        self.labelB.pack()
        self.labelC.pack()

        self.root.mainloop()

    def combineFunc(self, *funcs):
        def combinedFunc(*args, **kwargs):
            for f in funcs:
                f(*args, **kwargs)

        return combinedFunc

    def funcA(self):
        self.labelA["text"] = "A responds"

    def funcB(self):
        self.labelB["text"] = "B responds"

    def funcC(self):
        self.labelC["text"] = "C responds"


app = Test()

About the author

Jinku Hu

Founder of DelftStack.com. Jinku has worked in the robotics and automotive industries for over 8 years. He sharpened his coding skills when he needed to do the automatic testing, data collection from remote servers and report creation from the endurance test. He is from an electrical/electronics engineering background but has expanded his interest to embedded electronics, embedded programming and front-/back-end programming.

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