How can I compare two lists in python and return not matches
<p>I would like to return values from both lists that not in the other one:</p>

<pre><code>bar = [ 1,2,3,4,5 ]
foo = [ 1,2,3,6 ]

returnNotMatches( a,b )
</code></pre>

<p>would return </p>

<pre><code>[[ 4,5 ],[ 6 ]]
</code></pre>