Python: How to reference element of a tuple that is in a dictionary
<p>for example I have a dict var defined as below:</p>

<pre><code>var{m:(a, b)}
</code></pre>

<p>And now I want to reference the value of 'a' in a for loop</p>

<p>suppose var is filled with some instances as below</p>

<pre><code>var = {0: {'1a': (502, 2)}, 1: {'2b': (103, 3)}}
</code></pre>
