  
      class PartialAuthorForm(ModelForm):
          class Meta:
              model = Author
              fields = ('name', 'title')
  
      class PartialAuthorForm(ModelForm):
          class Meta:
              model = Author
              exclude = ('birth_date',)
 
</s> remove             exclude = ('birth_date',)
 </s> add             exclude = ('title',) </s> remove above) that includes only the ``name`` and ``title`` fields, you would
 </s> add above) that includes only the ``name`` and ``birth_date`` fields, you would
            fields = ('name', 'birth_date')
  
      class PartialAuthorForm(ModelForm):
          class Meta:
              model = Author
            fields = ('name', 'birth_date')
  
      class PartialAuthorForm(ModelForm):
          class Meta:
              model = Author
              exclude = ('birth_date',)
keep keep keep keep replace keep keep keep keep keep
 fixing modelforms example code, ticket #18832 
docs/topics/forms/modelforms.txt