title: Python Bokeh Stacked Bar Chart - How to display data label inside bars?
body: <p>I am currently using this example to create bar chart with Bokeh: <a href="http://docs.bokeh.org/en/0.11.0/docs/gallery/stacked_bar_chart.html" rel="nofollow noreferrer">http://docs.bokeh.org/en/0.11.0/docs/gallery/stacked_bar_chart.html</a></p>
  
  <p>Everything works so far, however I couldn't find a way to add data value to each bar like this chart: 
  <a href="http://docs.bokeh.org/en/latest/docs/gallery/elements.html" rel="nofollow noreferrer">http://docs.bokeh.org/en/latest/docs/gallery/elements.html</a></p>
  
  <p>The Bokeh.Charts.Bar class does not have the .text() function like Bokeh.Plotting.Figure. Is there anyway for me to add in the data like the elements chart to the bar chart? I have tried digging around all the codes below the classes and could not find any solution. Help is really appreciated. Thanks in advance.</p>