1 from Tkinter import Tk, Button, Canvas, PhotoImage
   2 
   3 def in_mandel(x, y):
   4     z = 0
   5     c = x + 1j * y
   6     for i in range(10):
   7         z = z ** 2 + c
   8         if abs(z) > 10:
   9             return False
  10     return True
  11 
  12 def draw_mandel():
  13     for x in range(200):
  14         for y in range(200):
  15             if in_mandel((x-100)/50.0, (y-100)/50.0):
  16                 image.put("white", to=[x, y])
  17 
  18 root = Tk()
  19 canvas = Canvas(root, width=199, height=199, background="black")
  20 image = PhotoImage(width=200, height=200)
  21 canvas.create_image(0, 0, image=image, anchor="nw")
  22 canvas.pack()
  23 button = Button(root, text="Draw", command=draw_mandel)
  24 button.pack()
  25 root.mainloop()

   1 import random
   2 from Tkinter import Tk, Button, Canvas, PhotoImage
   3 
   4 def putpixel(x, y):
   5     x = int(x * 100 + 100)
   6     y = int(y * 100 + 100)
   7     image.put("white", to=[x, y])
   8 
   9 def draw_serp():
  10     x = random.random()
  11     y = random.random()
  12     for step in range(1500):
  13         choice = random.choice(["top", "left", "right"])
  14         if choice == "top":
  15             x1 = x * 0.5
  16             y1 = y * 0.5 + 0.5
  17         elif choice == "left":
  18             x1 = x * 0.5 - 0.5
  19             y1 = y * 0.5
  20         elif choice == "right":
  21             x1 = x * 0.5 + 0.5
  22             y1 = y * 0.5
  23         x = x1
  24         y = y1
  25         if step > 50:
  26             putpixel(x, y)
  27 
  28 root = Tk()
  29 canvas = Canvas(root, width=199, height=199, background="black")
  30 image = PhotoImage(width=200, height=200)
  31 canvas.create_image(0, 0, image=image, anchor="nw")
  32 canvas.pack()
  33 button = Button(root, text="Draw", command=draw_serp)
  34 button.pack()
  35 root.mainloop()