def __init__(self, filename):

        # Check that file exists
        if not os.path.exists(filename):
            raise IOError(filename % "File not found: %s")

        # Open file and store handle to object
        # (but don't read in the contents yet)
        self.filename = filename
        self.file = None
dataset/ETHPy150Open hyperion-rt/hyperion/hyperion/model/model_output.py/ModelOutput.__init__/swapped operands of `%`