title: Inserting values into a dictionary without just creating a reference
body: <p>is there a way to insert a dictionary into another dictionary without just creating a reference to the dictionary.e.g</p>
  
  <pre><code>dict_a = {}
  dict_b = {}
  dict_a.insert(key, value)
  </code></pre>
  
  <p>this would prevent the problems that come with </p>
  
  <pre><code>dict_a["somekey"] = dict_b
  </code></pre>