code: def value(self):
          
          try:
              data = self.column.get_data(self.datum)
              if data is None:
                  if callable(self.column.empty_value):
                      data = self.column.empty_value(self.datum)
                  else:
                      data = self.column.empty_value
          except Exception:
              data = None
              exc_info = sys.exc_info()
              raise six.reraise(template.TemplateSyntaxError, exc_info[1],
                                exc_info[2])
  
          if self.url and not self.column.auto == "form_field":
              link_attrs = ' '.join(['%s="%s"' % (k, v) for (k, v) in
                                    self.column.link_attrs.items()])
              # Escape the data inside while allowing our HTML to render
              data = mark_safe('<a href="%s" %s>%s</a>' % (
                               (escape(self.url),
                                link_attrs,
                                escape(six.text_type(data)))))
          return data
docs: Returns a formatted version of the data for final output.
  
          This takes into consideration the
          :attr:`~horizon.tables.Column.link`` and
          :attr:`~horizon.tables.Column.empty_value`
          attributes.