title: Parsing dictionaries within dictionaries
body: <p>For example, I have this Python dictionaries within dictionaries, which is returned JSON object:</p>
  
  <pre><code>{
      u'BrowseNode': {
          u'Ancestors': {
              u'BrowseNode': {
                  u'Ancestors': {
                      u'BrowseNode': {
                          u'Ancestors': {
                              u'BrowseNode': {
                                  u'Ancestors': {
                                      u'BrowseNode': {
                                          u'BrowseNodeId': 283155,
                                          u'Name': u'Books'
                                      }
                                  },
                                  u'BrowseNodeId': 1000,
                                  u'IsCategoryRoot': 1,
                                  u'Name': u'Subjects'
                              }
                          },
                          u'BrowseNodeId': 75,
                          u'Name': u'Science'
                      }
                  },
                  u'BrowseNodeId': 14545,
                  u'Name': u'Physics'
              }
          },
          u'BrowseNodeId': 226697,
          u'Name': u'Electromagnetism'
      }
  }
  </code></pre>
  
  <p>and I want to get "Name" key values, but leaving Python object as is (without converting it or similar)</p>
  
  <p>Output should be like this:</p>
  
  <pre><code>Books, Subjects, Science, Physics, Electromagnetism
  </code></pre>
  
  <p>Thanks</p>