title: AttributeError: 'str' object has no attribute 'items' error
body: <p>I am writing a python script for extracting information from the json file. I am printing the title of the book with lastname as Marcus. I have the output but it has the error AttributeError: 'str' object has no attribute 'items' error as well </p>
  
  <pre><code>import json
  from pprint import pprint
  with open('bibliography.json.txt', encoding='utf-8') as data_file:    
  data = json.load(data_file)
  for entry in data['bibliography']['biblioentry']:
  for authors in entry['author']:
  for key,val in authors.items():
  if(key== 'lastname' and val=='Marcus'):
  title=entry['title']
  print(title) 
  </code></pre>
  
  <p>the json file looks like this:</p>
  
  <pre><code>{
    "bibliography": {
      "biblioentry": [
        {
          "-type": "Journal Article",
          "title": "A brief survey of web data extraction tools",
          "author": [
            {
              "firstname": "Alberto",
              "middlename": "HF",
              "lastname": "Laender"
            },
            {
              "firstname": "Berthier",
              "middlename": "A",
              "lastname": "Ribeiro-Neto"
            },
            {
              "firstname": "Altigran",
              "middlename": "S",
              "lastname": "da Silva"
            },
            {
              "firstname": "Juliana",
              "middlename": "S",
              "lastname": "Teixeira"
            }
          ],
          "details": {
            "journalname": "ACM Sigmod Record",
            "volume": "31",
            "number": "2",
            "pages": "84-93"
          },
          "year": "2002",
          "publisher": "ACM"
        },......
  </code></pre>