code: def get_namespace_and_tag(name):
          
  
          if isinstance(name, str):
              if name[0] == "{":
                  uri, ignore, tag = name[1:].partition("}")
              else:
                  uri = None
                  tag = name
          else:
              uri = None
              tag = None
          return uri, tag
docs: Separates the namespace and tag from an element.
  
          :param str name: Tag.
          :returns: Namespace URI and Tag namespace.
          :rtype: tuple