title: Plotting multiple pie charts in plotly
body: <p>I have the following code from edited from: <a href="https://stackoverflow.com/questions/39629735/how-to-plot-pie-charts-as-subplots-with-custom-size-with-plotly-in-python">How to plot pie charts as subplots with custom size with Plotly in Python</a></p>
  
  <pre><code>import plotly
  import plotly.offline as py
  import plotly.graph_objs as go
  py.init_notebook_mode(connected=True)
  
  labels = ['Oxygen','Hydrogen','Carbon_Dioxide','Nitrogen']
  values = [4500,2500,1053,500]
  domains = [
      {'x': [0.0, 0.33], 'y': [0.0, 0.50]},
      {'x': [0.33, 0.66], 'y': [0.0, 0.50]},
      {'x': [0.66, 1], 'y': [0.0, 0.50]},
      {'x': [0.0, 0.33], 'y': [0.50, 1]},
      {'x': [0.33, 0.66], 'y': [0.50, 1]},
      {'x': [0.66, 1], 'y': [0.50, 1]},
  ]
  traces = []
  valueslist = []
  
  for domain in domains:
      trace = go.Pie(labels = labels,
                     values = values,
                     domain = domain)
      traces.append(trace)
  
  layout = go.Layout(height = 600,
                     width = 600,
                     autosize = False,
                     title = 'Main title')
  fig = go.Figure(data = traces, layout = layout)
  py.iplot(fig, show_link = False, image='png')
  </code></pre>
  
  <p>I am trying to plot 6 pie charts at one time with <em>different values</em> and <em>different titles</em> for each chart. How should I add these extra lists? Assume, I have the following lists to add:</p>
  
  <pre><code>values1 = [5, 6, 1, 2]
  values2 = [1, 4, 5, 6]
  values3 = [2, 6, 2, 4]
  values4 = [1, 5, 3, 7]
  values5 = [25, 51, 33, 47]
  #with following titles:
  title = 'title0'
  title1 = 'title1'
  title2 = 'title2'
  title3 = 'title3'
  title4 = 'title4'
  title5 = 'title5'
  </code></pre>