title: List of dict of dict in Pandas
body: <p>I have list of dict of dicts in the following form:</p>
  
  <p><code>
  [{0:{'city':'newyork', 'name':'John', 'age':'30'}},
   {0:{'city':'newyork', 'name':'John', 'age':'30'}},]
  </code></p>
  
  <p>I want to create pandas DataFrame in the following form:</p>
  
  <p><code>city     name    age
   newyork   John    30
   newyork   John    30
  </code></p>
  
  <p>Tried a lot but without any success</p>
  
  <p>can you help me?</p>