title: How do I display the Django '__all__' form errors in the template?
body: <p>I have the following form code:</p>
  
  <pre><code># forms.py
  class SomeForm(forms.Form):
      hello = forms.CharField(max_length=40)
      world = forms.CharField(max_length=40)
  
      def clean(self):
          raise forms.ValidationError('Something went wrong')
  
  # views.py
  def some_view(request):
      if request.method == 'POST':
          form = SomeForm(request.POST)
          if form.is_valid():
              pass
      else:
          form = SomeForm()
  
      data = {
          'form': form
      }
      return render_to_response(
          'someform.html',
          data,
          context_instance=RequestContext(request)
      )
  
  # someform.html
  {{ form.hello }}
  {{ form.hello.errors }}
  
  {{ form.world }}
  {{ form.world.errors }}
  </code></pre>
  
  <p>How can I display the errors from the key <code>__all__</code> at the template level without having to  extract it in the view separately?  I want to avoid the following:</p>
  
  <pre><code>    if form.errors.has_key('__all__'):
          print form.errors['__all__']
  </code></pre>