title: Python: How can I generate a bar graph from 2D array
body: <p>I have a 2D array (3x3), and I want to generate a bar graph from each row vector that contains 3 bar charts like this: <a href="http://www.flickr.com/photos/altaf009_forums/8265573801/" rel="nofollow">http://www.flickr.com/photos/altaf009_forums/8265573801/</a></p>
  
  <p>This is easy with MATLAB 'bar' function, just passing the array as a parameter, how can I do it in python? I also want those xticklabels as shown in the picture. Thanks.</p>