title: why do i have a type error when i run this loop to print out key value pairs? each item k and v are str already
body: <p>getting an error when I try to run the code.</p>
  
  <blockquote>
    <blockquote>
      <p>Traceback (most recent call last):   File "", line 10, in
      
          print(k+':'+v)<br>
      TypeError: must be str, not list</p>
    </blockquote>
  </blockquote>
  
  <pre><code>with open("a_movie.json") as json_file:
      json_data=json.load(json_file)
  
  # Print each key-value pair in json_data
  for k, v in json_data.items():
      print(type(k))
      print(type(v))
      print(k+':'+v)
  </code></pre>
  
  <p>sample json: </p>
  
  <pre><code> {'Title': 'The Social Network', 'Year': '2010', 'Rated': 'PG-13', 'Released': '01 Oct 2010', 'Runtime': '120 min', 'Genre': 'Biography, Drama', 'Director': 'David Fincher', 'Writer': 'Aaron Sorkin (screenplay), Ben Mezrich (book)', 'Actors': 'Jesse Eisenberg, Rooney Mara, Bryan Barter, Dustin Fitzsimons', 'Plot': 'As Harvard student Mark Zuckerberg creates the social networking site that would become known as Facebook, he is sued by the twins who claimed he stole their idea, and by the co-founder who was later squeezed out of the business.', 'Language': 'English, French', 'Country': 'USA', 'Awards': 'Won 3 Oscars. Another 171 wins &amp; 183 nominations.', 'Poster': 'https://m.media-amazon.com/images/M/MV5BOGUyZDUxZjEtMmIzMC00MzlmLTg4MGItZWJmMzBhZjE0Mjc1XkEyXkFqcGdeQXVyMTMxODk2OTU@._V1_SX300.jpg', 'Ratings': [{'Source': 'Internet Movie Database', 'Value': '7.7/10'}, {'Source': 'Rotten Tomatoes', 'Value': '96%'}, {'Source': 'Metacritic', 'Value': '95/100'}], 'Metascore': '95', 'imdbRating': '7.7', 'imdbVotes': '590,040', 'imdbID': 'tt1285016', 'Type': 'movie', 'DVD': '11 Jan 2011', 'BoxOffice': '$96,400,000', 'Production': 'Columbia Pictures', 'Website': 'N/A', 'Response': 'True'}
  </code></pre>