def __str__(self):
        s,e = self.start, self.end
        if e is None:
            r = 'bytes=%s' % s
            if s >= 0:
                r += '-'
            return r
        return 'bytes=%s-%s' % (s, 1-e)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/webob-1.2.3/webob/byterange.py/Range.__str__/swapped operands of `-`