Color Changing Number Guessing Game – Python Tkinter GUI Tutorial #157

In this video we’ll build a fun little color changing number guessing game!

We’ll randomly generate a random number between one and ten. The user then guesses the number.

Our app will calculate how far away they are and change the background color of the app to represent “hot” or “cold” using different shades of red and blue.

Python Code: guess.py
(Github Code)

from tkinter import *
from random import randint

root = Tk()
root.title('Codemy.com - Guess The Number!')
root.iconbitmap('c:/gui/codemy.ico')
root.geometry("500x500")

num_label = Label(root, text="Pick A Number\nBetween 1 and 10!", font=("Brush Script MT", 32))
num_label.pack(pady=20)

def guesser():
	if guess_box.get().isdigit():
		# Reset our label
		num_label.config(text="Pick A Number\nBetween 1 and 10!")
		# Find out how far away our pick was from the actual number
		dif = abs(num - int(guess_box.get()))
		
		# Check to see if correct
		if int(guess_box.get()) == num:
			bc = "SystemButtonFace"
			num_label.config(text="Correct!!")
		elif dif == 5:
			# Set background color to white
			bc = "white"
		elif dif < 5:
			bc = f'#ff{dif}{dif}{dif}{dif}'
		else: 
			bc = f'#{dif}{dif}{dif}{dif}ff'
		# Change the background of the app
		root.config(bg=bc)
		# Change bg of label
		num_label.config(bg=bc)

	else:
		# Delete entry and throw error message
		guess_box.delete(0, END)
		num_label.config(text="Hey! That's Not A Number!")

def rando():
	global num
	num = randint(1,10)
	# Clear the guess box
	guess_box.delete(0, END)
	# Change the colors back to normal
	num_label.config(bg="SystemButtonFace", text="Pick A Number\nBetween 1 and 10!")
	root.config(bg="SystemButtonFace")
	



guess_box = Entry(root, font=("Helvetica", 100), width=2)
guess_box.pack(pady=20)

guess_button = Button(root, text="Submit", command=guesser)
guess_button.pack(pady=20)

rand_button = Button(root, text="New Number", command=rando)
rand_button.pack(pady=20)

# Generate a random number on start
rando()

root.mainloop()