def isValidPlugin(self, filename):
        """
        Check if the resource found at filename is a valid plugin.
        """
        raise NotImplementedError(self % "'isValidPlugin' must be reimplemented by %s")
dataset/ETHPy150Open datamachine/telex/telex/plugin/PluginFileLocator.py/IPluginFileAnalyzer.isValidPlugin/swapped operands of `%`