title: Python: Read several json files from a folder
body: <p>I would like to know how to read several <code>json</code> files from a single folder (without specifying the files names, just that they are json files). </p>
  
  <p>Also, it is possible to turn them into a <code>pandas</code> DataFrame?</p>
  
  <p>Can you give me a basic example?</p>