@property
    def _prop_name(self):
        if ':' in self._nsptagname:
            start = self._nsptagname.index(':')+1
        else:
            start = 0
        return self._nsptagname[start:]
Calculate property name from tag name, e.g. a:schemeClr -> schemeClr.
dataset/ETHPy150Open python-openxml/python-docx/docx/oxml/xmlchemy.py/Choice._prop_name