title: What's the function like sum() but for multiplication? product()?
body: <p>Python's <a href="http://docs.python.org/library/functions.html#sum" rel="noreferrer"><code>sum()</code></a> function returns the sum of numbers in an iterable.</p>
  
  <pre><code>sum([3,4,5]) == 3 + 4 + 5 == 12
  </code></pre>
  
  <p>I'm looking for the function that returns the product instead.</p>
  
  <pre><code>somelib.somefunc([3,4,5]) == 3 * 4 * 5 == 60
  </code></pre>
  
  <p>I'm pretty sure such a function exists, but I can't find it.</p>