def dup_clear_denoms(f, K0, K1=None, convert=False):
    if K1 is None:
        if K0.has_assoc_Ring:
            K1 = K0.get_ring()
        else:
            K1 = K0

    common = K1.one

    for c in f:
        common = K1.lcm(common, K0.denom(c))

    if not K1.is_one(common):
        f = dup_mul_ground(f, common, K0)

    if not convert:
        return common, f
    else:
        return common, dup_convert(f, K0, K1)
The column being named elsewhere also cancels the error,
dataset/ETHPy150Open sympy/sympy/sympy/polys/densetools.py/dup_clear_denoms--crossover with--dataset/ETHPy150Open zzzeek/sqlalchemy/test/orm/test_mapper.py/MapperTest.test_override_3