Ok, I tried
key = try_load_key("active.key")

and this
bids = [
{ "card_detail_id": 439, "amount": 2, "bid_usd": "6.00", "edition": 7 }
]
and this change
def get_sale_by_card(id, edition, gold=True):

Is generating this output which is not what I was expecting.
Buying 439 at $1500, 455746.9692826542645971893066 DEC