DRY version of a list
<p>What would be the most efficient way to do the following:</p>

<pre><code>genres = [value_from_key(wb, 'Genre (1)', n),
          value_from_key(wb, 'Genre (2)', n),
          value_from_key(wb, 'Genre (3)', n),
          value_from_key(wb, 'Genre (4)', n),]
</code></pre>

<p>I tried doing it with a list comprehension -- <code>genres = [value_from_key(wb, 'Genre (%s)'%(i), n) for i in range[1,4]]</code>, but it kept raising a TypeError saying object is unsubscriptable. What would be the DRY way of doing the above? Thank you. </p>
