def __sub__(self, other):
        if not isinstance(other, SeqBase):
            raise TypeError('cannot subtract sequence and %s' % type(other))
        return SeqAdd(self, -other)
Return the text of the release notes.
dataset/ETHPy150Open sympy/sympy/sympy/series/sequences.py/SeqBase.__sub__--crossover with--dataset/ETHPy150Open openstack-infra/release-tools/releasetools/release_notes.py/generate_release_notes