title: json.decoder.JSONDecodeError: Expecting ',' delimiter: line 1 column 21641 (char 21640)
body: <p>I am getting the error as described in the title when calling the function:</p>
  
  <pre><code>def read_file(file_name):
      """Return all the followers of a user."""
      f = open(file_name, 'r')
      data = []
      for line in f:
          data.append(json.loads(line.strip()))
      f.close()
      return data
  </code></pre>
  
  <p>Sample data looks like this:</p>
  
  <pre><code>"from": {"name": "Ronaldo Naz\u00e1rio", "id": "618977411494412"}, 
  "message": "The king of football. Happy birthday, Pel\u00e9!", 
  "type": "photo", "shares": {"count": 2585}, "created_time": "2018-10-23T11:43:49+0000", 
  "link": "https://www.facebook.com/ronaldo/photos/a.661211307271022/2095750393817099/?type=3", 
  "status_type": "added_photos", 
  "reactions": {"data": [], "summary": {"total_count": 51779, "viewer_reaction": "NONE"}}, 
  "comments": {"data": [{"created_time": "2018-10-23T11:51:57+0000", ... }]}
  </code></pre>