Ignora ausência de get_form em super de CrispyLayoutFormMixin

crispy_layout_mixin.py

@@ -81,7 +81,12 @@ class CrispyLayoutFormMixin(object):
                 for fieldname, span in row]
 
     def get_form(self, form_class=None):
+        try:
             form = super(CrispyLayoutFormMixin, self).get_form(form_class)
+        except AttributeError:
+            # simply return None if there is no get_form on super
+            pass
+        else:
             form.helper = FormHelper()
             form.helper.layout = SaplFormLayout(*self.get_layout())
             return form