title: If-statement confusion
body: <p>I have a function like the one below. What I try to do is let say I have <code>checklist('sky high')</code>, then the output produce will be <code>30,19</code> not <code>0,30,0,19</code> like what my current code do right now. And if I have <code>checklist('blue sky')</code>, the output produce will be <code>0</code>. So how can I alter my code?</p>
  
  <pre><code>def checklist(argument):
  
      data = [["sky",'79'],
              ["sky high",'30'],
              ["sky sky",'50'],
              ["sky high",'19']]
  
      for row in data:
          if argument == row[0]:
             print row[1]
  
          else:
             print 0
  </code></pre>