CODEWITHSUNDEEP
pythonpython-3.xuser-interfacetkinter
Igor Bond
Igor Bond

Reputation: 121

How can I change color of button when it pushed with tkinter?

I made 100 buttons and I want to change color of button which pushed. How can I do that? Here is my code.

import tkinter as tk

def settingships():
    column = -1
    row = 0
    root = tk.Tk()
    root.title('set ships')
    root.geometry('470x310')
    for i in range(101):
        if i > 0:
            if i%10 == 1:
                row += 1 
                column = -1
            column += 1
            text=f'{i}'
            btn = tk.Button(root,text=text,command=collback(i)).grid(column=column,row=row)
    root.mainloop()


def collback(i):
    def nothing():
        btn.config(bg='#008000')

    return nothing

Upvotes: 1

Views: 112

Answers (1)

acw1668
acw1668

Reputation: 47183

First, i is not used in collback(). Second btn is undefined in nothing(). You should pass btn to collback() instead.

In order to do that you need to replace the following line:

btn = tk.Button(root,text=text,command=collback(i)).grid(column=column,row=row)

to:

btn = tk.Button(root, text=text)
btn.grid(column=column, row=row)
btn.config(command=collback(btn))

And modify collback() as below:

def collback(btn):
    def nothing():
        btn.config(bg='#008000')
    return nothing

Or simply use lambda to replace collback():

btn.config(command=lambda b=btn: b.config(bg='#008000'))

Upvotes: 2

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