title: if, elif and else.. priority and chains
body: <p>I always had this curiosity about Python and I can't find a clear answer, maybe someone can help me
  what is the "if", "elif" and "else"  priority and way of working?
  if I do:</p>
  
  <pre><code>if conditionA:
      do something
  elif conditionB:
      do something else
  else:
      do something else
  </code></pre>
  
  <p>does the "else" check  the condition in "elif" or both conditions "if" and "elif"?
  is there any interesting order in which they can be used (e.g. if, else, elif, else etc.) ?
  thanks</p>