title: Interactive plot in Jupyter notebook
body: <p>I am trying to get 'realtime' ploting in Jupyter notebook.
  The example can be found <a href="http://nbviewer.jupyter.org/url/jointlab.upol.cz/machulka/download/_tmp/matplotlib.ipynb" rel="noreferrer">here</a>. Here is the code:</p>
  
  <pre><code>%matplotlib notebook
  
  import numpy as np
  import matplotlib.pyplot as pl
  
  from random import randint
  from time import sleep
  
  from ipywidgets import FloatProgress
  from IPython import display
  
  siz = 10
  dat = np.zeros((siz, siz))
  
  fig = pl.figure()
  axe = fig.add_subplot(111)
  img = axe.imshow(dat)
  
  num = 1000
  
  prgBar = FloatProgress(min=0, max=num-1)
  display.display(prgBar)
  
  for i in range(num):
      prgBar.value = i
      pos = (randint(0, siz-1), randint(0, siz-1))
      dat[pos] += 1
      img.set_data(dat)
      img.autoscale()
      #sleep(0.01)
  </code></pre>
  
  <p>What I am aiming for is to see how the plot is changing with each itteration.
  I also tried set the interactive mod on by pl.ion(), changing backent to inline, calling pl.draw(), but non of it was working. BTW, the progressbar is working just fine...</p>
  
  <p>Thanks Radek</p>