[Tkinter] Bounce Game

[SheeppOSU]

I was making this game from the Python book and I made it exactly as it had it in the book but when I asked python to check it before I ran it, it said,"inconsistent use of tabs and spaces in indentation" for line 7. Please tell me if you notice something wrong.

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import time import random from tkinter import *   class Ball:     def __init__(self, canvas, color):     self.canvas = canvas     self.id = cavas.create_oval(10, 10, 25, 25, fill=color)     self.canvas.move(self.id, 245, 100)                 def draw(self):         self.canvas.move(self.id, 0, -1)   tk = Tk() canvas = Canvas(tk, width=400, height=400) canvas.pack() tk.title("Game") tk.wm_attributes("-topmost", 1) tk.title("Game") canvas = Canvas(tk, width=400, height=400, bd=0, highlightthickness=0) canvas.pack() tk.update()   ball = Ball(canvas, 'red')   while 1:         ball.draw()     tk.update_idletasks()     tk.update()     time.sleep(0.01)

[j.crater]

I believe the problem is with indentation here. Lines within the __init__ function should be indented:

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def __init__(self, canvas, color):     self.canvas = canvas     self.id = cavas.create_oval(10, 10, 25, 25, fill=color)     self.canvas.move(self.id, 245, 100)