title: django formset save gives expected string or buffer error
body: <p>I want to add new table in the database using form set</p>
  
  <pre><code>for form in formset:
      blog = Blog()
      blog.title = form.cleaned_data['title']
      blog.save()
  </code></pre>
  
  <p>Now when I do this it gives error saying <code>expected string or buffer</code></p>
  
  <p>But whn i do <code>print(blog)</code> befor save it gives me blog object</p>
  
  <p>Whats the issue here ?</p>