Easier way to add multiple list items?
<p>Is there an easier way to sum together items from a list than the code I've written below? I'm new to this and this seems somewhat unwieldy.         </p>

<pre><code>n = [3,5,7]
o = [4,10,8]
p = [4,10,5]

lists = [n, o, p]

def sumList(x):
    return sum(x)


def listAdder(y):
    count = 0
    for item in y:
        count += sumList(item)
    return count

print listAdder(lists)
</code></pre>
