import dis


def f():
    a.b()


print(dis.dis(f))


def getPositions(show_caches):
    return [
        (bc.opname, bc.positions)
        for bc in dis.Bytecode(f, show_caches=show_caches)
        if bc.opname != "CACHE"
    ]


for a,b in zip(getPositions(True), getPositions(False)):
    assert a==b, (a,b)