title: Python dictionary extension
body: <p>To whom it may concern,</p>
  <p>I have the following code:</p>
  <pre><code>dict1 = {'num_wings': [1, 0], 'num_legs': [4,8]}
  dict2 = {'num_wings': [3, 5], 'num_legs': [4,8]}
  dict3 = {'num_wings': [6, 1], 'num_legs': [4,8]}
  dict_list = [dict1,dict2,dict3]
  </code></pre>
  <p>and I am trying to get the following result:</p>
  <pre><code>dict_gen = {'num_wings':[1,0,3,5,6,1],'num_legs':[4,8,4,8,4,8]} 
  dict_gen
  </code></pre>
  <p>Could someone help me bridge my gap? I would appreciate any thoughts that you may have.</p>
  <p>-Many thanks</p>