def __repmethod(self, name, repmethod):
        if repmethod is None:
            return name
        if repmethod == 'literalRegex':
            return re.escape(name)
        # should not be reached
        raise MacroError, (repmethod, name) %'unknown representation method %s for %s'
dataset/ETHPy150Open sassoftware/conary/conary/build/macros.py/Macros.__repmethod/swapped operands of `%`