This service routine is used to add to some parent
span child with a given class
and textual content.
# - - - M o n t h C e l l . _ _ s p a n def __span ( self, parent, class_, text ): '''Add text inside a span inline [ (parent is an et.Element) and (class_ is a string) and (text is a string) -> parent +:= a new span element with class=(class_) and text=(text) return that new span element ] ''' span = et.SubElement ( parent, 'span' ) span.attrib['class'] = class_ span.text = text return span