Is it possible to output kubo equivalent CID?

[ross-spencer]

I am getting two different results for simple data on the command line in Kubo versus with this library.

I believe the values should be equivalent:

With python:

    # data
    # {}

    # ipfs (kubo)
    # bafyreigbtj4x7ip5legnfznufuopl4sg4knzc2cof6duas4b3q2fy6swua

    # ipfs-cid
    # bafkreicecnx2gvntm6fbcrvnc336qze6st5u7qq7457igegamd3bzkx7ri

    """

    ex = {}
    d = json.dumps(ex, sort_keys=True)
    cid_hash = cid_sha256_hash(d.encode())
    return cid_hash

With the ipfs cli tool kubo:

echo "{}" | ./ipfs dag put
bafyreigbtj4x7ip5legnfznufuopl4sg4knzc2cof6duas4b3q2fy6swua

Ideally the Python library would match the reference implementation. Am I missing something simple, or are the two algorithms not outputting equivalent data?