def __init__(self, a, b, numdiffs=10):

        self.diff_dimensions = ()
        self.diff_bytes = []

        super(RawDataDiff, self).__init__(a, b, numdiffs=numdiffs)
See `FITSDiff` for explanations of the initialization parameters.
dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/diff.py/RawDataDiff.__init__