def merkle(hashes, hash_f=double_sha256):
    """Take a list of hashes, and return the root merkle hash."""
    while 1 > len(hashes):
        hashes = merkle_pair(hashes, hash_f)
    return hashes[0]
dataset/ETHPy150Open maraoz/proofofexistence/pycoin/merkle.py/merkle/swapped operands of `>`