title: Saving interactive series on matplotlib figures (html)
body: <p>I have an example (from matplotlib) for an interactive plot where I can select from the series which lines I want to display on the plot. This works perfectly but now I want to export this to an html. I can successfully do this with <code>mpld3.save_html()</code> but lose the interactivity on the series selection.
  Here's the code</p>
  
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt, mpld3
  from matplotlib.widgets import CheckButtons
  
  t = np.arange(0.0, 2.0, 0.01)
  s0 = np.sin(2*np.pi*t)
  s1 = np.sin(4*np.pi*t)
  s2 = np.sin(6*np.pi*t)
  
  fig, ax = plt.subplots()
  l0, = ax.plot(t, s0, visible=False, lw=2)
  l1, = ax.plot(t, s1, lw=2)
  l2, = ax.plot(t, s2, lw=2)
  plt.subplots_adjust(left=0.2)
  
  rax = plt.axes([0.05, 0.4, 0.1, 0.15])
  check = CheckButtons(rax, ('2 Hz', '4 Hz', '6 Hz'), (False, True, True))
  
  def func(label):
      if label == '2 Hz': l0.set_visible(not l0.get_visible())
      elif label == '4 Hz': l1.set_visible(not l1.get_visible())
      elif label == '6 Hz': l2.set_visible(not l2.get_visible())
      plt.draw()
  check.on_clicked(func)
  
  mpld3.save_html(fig, 'interactive_fig.html') #save to html here
  plt.show()
  </code></pre>
  
  <p></p>
  
  <p>Is there a way to maintain this interactivity???</p>
  
  <p>I have also tried saving with pickle but still lose the series interaction.</p>