title: Comparing two strings in python
body: <p>I need to compare two strings that are almost the same. Then find the point at which they differ using python. Any help?</p>
  
  <p>for example two strings a and b</p>
  
  <pre><code>A = 'oooooSooooooooooooooooooRoMooooooAooooooooooooooo'
  B = 'oooooSooooooooooooooooooooMooooooAooooooooooooooo'
  </code></pre>
  
  <p>Thanks</p>