Parse name of the tag.

        Result is saved to the :attr:`_tagname` property.

def _parseTagName(self):
        """
        Parse name of the tag.

        Result is saved to the :attr:`_tagname` property.
        """
        for el in self._element.split():
            el = el.replace("/", "").replace("<", "").replace(">", "")

            if el.strip():
                self._tagname = el.rstrip()
                return