return the result of the method self._html_output, called with 5 arguments: normal_row to a string,
return self . _html_output ( normal_row = '<tr%(html_class_attr)s><th>%(label)s</th><td>%(errors)s%(field)s%(help_text)s</td></tr>' , error_row = '<tr><td colspan="2">%s</td></tr>' , row_ender = '</td></tr>' , help_text_html = '<br /><span class="helptext">%s</span>' , errors_on_separate_row = False )