A spectacular ball catching game coded in Python 3 with Tkinter.

Ball Catching Game.py

from tkinter import Tk, Button, Label
from tkinter import Canvas
from random import randint

root = Tk()
root.title("Ball Catching Game")
root.resizable(False,False)

canvas = Canvas(root, width=600, height=600)
canvas.pack()

limit = 0

dist = 5

score = 0

class Ball:
	
	def __init__(self, canvas, x1, y1, x2, y2):
		self.x1 = x1
		self.y1 = y1
		self.x2 = x2
		self.y2 = y2
		self.canvas = canvas
		
		self.ball = canvas.create_oval(self.x1, self.y1, self.x2, self.y2,
												fill = "red",tags = 'dot1')
	
	def move_ball(self):
		
		offset = 10
		global limit
		
		if limit >= 510:
			global dist,score,next
			
			if(dist - offset <= self.x1 and
			dist + 40 + offset >= self.x2):
				    
				score += 10
				
				canvas.delete('dot1')
				
				ball_set()
				
			else:
				canvas.delete('dot1')
				bar.delete_bar(self)
			    
				score_board()
			return
			
		limit += 1
		
		self.canvas.move(self.ball,0,1)
		
		self.canvas.after(10,self.move_ball)
				
class bar:
	
	def __init__(self,canvas,x1,y1,x2,y2):
		self.x1 = x1
		self.y1 = y1
		self.x2 = x2
		self.y2 = y2
		self.canvas = canvas
		
		self.rod=canvas.create_rectangle(self.x1, self.y1, self.x2, self.y2,
												fill="yellow",tags='dot2')
	
	def move_bar(self,num):
		global dist
		
		if(num == 1):
			
			self.canvas.move(self.rod,20,0)

			dist += 20
		else:
			
			self.canvas.move(self.rod,-20,0)
			
			dist-=20
	
	def delete_bar(self):
		canvas.delete('dot2')
		
def ball_set():
	global limit
	limit=0
		
	value = randint(0,570)
	
	ball1 = Ball(canvas,value,20,value+30,50)
	
	ball1.move_ball()

def score_board():
	root2 = Tk()
	root2.title("Catch the ball Game")
	root2.resizable(False,False)
	canvas2 = Canvas(root2,width=300,height=300)
	canvas2.pack()
	
	w = Label(canvas2,text="Game Over!\n\nYour Score = "
											+ str(score) + "\n\n")
	w.pack()
	
	button3 = Button(canvas2, text="Play Again", bg="green",
						command=lambda:play_again(root2))
	button3.pack()
	
	button4 = Button(canvas2,text="Exit",bg="green",
					command=lambda:exit_handler(root2))
	button4.pack()

def play_again(root2):
	root2.destroy()
	main()

def exit_handler(root2):
	root2.destroy()
	root.destroy()

def main():
	global score,dist
	score = 0
	dist = 0
		
	bar1=bar(canvas,5,560,45,575)
    
	button = Button(canvas,text=">", bg="green",
					command=lambda:bar1.move_bar(1))
					
	button.place(x=300,y=580)
	
	button2 = Button(canvas,text="<",bg="green",
					command=lambda:bar1.move_bar(0))
	button2.place(x=260,y=580)
	
	ball_set()
	root.mainloop()

if(__name__=="__main__"):
	main()