title: How to compare two list value and append that value to new list?
body: <pre><code>list1 = [{'name': 'Tyler', 'age': '12', 'city': 'SF'}, {'name': 'Caitlyn', 'age': '10', 'city': 'SJ'}]
  list2 = [{'age': '12', 'hobby': 'soccer', 'song': 'Abba'}, {'age': '10', 'hobby': 'baseball', 'song': 'Punk'}]
  </code></pre>
  
  <p>Here are the two lists and I want to compare the <code>age</code> in each list that matches and append it to list1. Can you guys help me with this? </p>
  
  <p>The results should be</p>
  
  <pre><code>list1 = [{'name': 'Tyler', 'age': '12', 'city': 'SF', 'age': '12', 'hobby': 'soccer', 'song': 'Abba'}, {'name': 'Caitlyn', 'age': '10', 'city': 'SJ', 'age': '10', 'hobby': 'baseball', 'song': 'Punk'}]
  </code></pre>
  
  <p>Thanks!</p>