Python tkinter Colorchooser


Basics of Python Tkinter

We can access the native colour picker dialog by using Tkinter colorchooser module.
Background colour using colorchooser
Using askcolor we can get the user selected colour as Hex code and also the R G B values.
c_code = colorchooser.askcolor()
On click of a button the native colour picker will be displayed, On selection of colour by user we can print the selected colour code.

Tkinter colorchooser to use native colour picker module and assign selected colors to the widget
import tkinter as tk
from tkinter import colorchooser
def collect_color():
    c_code = colorchooser.askcolor()
    #my_w.config(background=c_code[1]) # change the background color of window
    print(c_code)
 
my_w = tk.Tk()
my_w.geometry("410x250")  # Size of the window 
b1=tk.Button(my_w,text='Select Background',command=lambda:collect_color())
b1.grid(row=1,column=1,padx=20,pady=20)
my_w.mainloop()  # Keep the window open
Changing the background colour of the window ( Un-comment the line above )
my_w.config(background=c_code[1])

Selecting background colour for buttons

Multiple buttons & colorchooser

We can display more Buttons and onClick of the button the colour picker dialog will open. User can select the colour and the button will use the selected colour as background colour.
import tkinter as tk
from tkinter import colorchooser
def collect_color(k):
    c_code = colorchooser.askcolor(title ="Select color")
    buttons[k].config(bg=c_code[1])
     
my_w = tk.Tk()
my_w.geometry("410x250")  # Size of the window 

n=20 # number of buttons
i=2 # row 
j=0 # column 
buttons = []
for k in range(n):
    e = tk.Button(my_w, text=k,height=2,width=10,
		command=lambda k=k: collect_color(k)) 
    e.grid(row=i, column=j,padx=1,pady=1)
    buttons.append(e)
    j=j+1
    if(j%5==0):
        i=i+1
        j=0
my_w.mainloop()  # Keep the window open
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