title: displaying django form error messages instead of just the field name
body: <p>I have a form and I want to display the errors in a for loop.</p>
  
  <pre><code>{% for error in form.errors %}
      &lt;tr&gt;&lt;td&gt;{{ error }}&lt;/td&gt;&lt;/tr&gt;
  {% endfor %}
  </code></pre>
  
  <p>By doing this the {{ error }} only contains the field name that has an error, but not the error message. How can I display the error message?</p>