using index() on multidimensional lists
<p>For a one dimensional list, the index of an item is found as follows:</p>

<pre><code> a_list = ['a', 'b', 'new', 'mpilgrim', 'new']
 a_list.index('mpilgrim')
</code></pre>

<p>What is the equivalent for a 2 or n dimensional list?</p>

<p>Edit: I have added an example to clarify:
If I have a 3 dimensional list as follows</p>

<pre><code>b_list = [
          [1,2],
          [3,4],
          [5,6],
          [7,8]
         ],
         [
          [5,2],
          [3,7],
          [6,6],
          [7,9]
         ]
</code></pre>

<p>Now lets say I want to identify a certain value in this list. If I know the index of the 1st and 2nd dimesion but don't know the zero-th index for the value I want, how do I go about finding the zero-th index?</p>

<p>Would it be something like:</p>

<pre><code>  target_value = 7
  b_list[0].index(target_value)
</code></pre>

<p>With the output being an integer:
    0</p>
