title: Turn a dictionary into two lists, one for keys and the other for values?
body: <p>I read in a object of type <code>collections.defaultdict</code> from a file using <code>pickle.load</code>. It has a numerical value for each string key. It seems to be just like an object of type <code>dict</code>, or I might be wrong.  </p>
  
  <p>I would like to create two lists out of the object, one list consisting all the keys, and the other list all the values. How can I do that for an object of type <code>dict</code>? How can I do that for an object of type <code>collections.defaultdict</code>?</p>
  
  <p>For example, from an object of type <code>dict</code></p>
  
  <pre><code>tel = {'jack': 4098, 'sape': 4139}
  </code></pre>
  
  <p>I would like to create two lists <code>['jack', 'sape']</code> and <code>[4098, 4139]</code>. </p>
  
  <p>Thanks!!</p>