title: WTForms getting the errors
body: <p>Currently in WTForms to access errors you have to loop through field errors like so:</p>
  
  <pre><code>for error in form.username.errors:
          print error
  </code></pre>
  
  <p>Since I'm building a rest application which uses no form views, I'm forced to check through all form fields in order to find where the error lies.</p>
  
  <p>Is there a way I could do something like:</p>
  
  <pre><code>for fieldName, errorMessage in form.errors:
          ...do something
  </code></pre>