search for EnableAmendment (Python)

find_enableamendment.py

import txsplain
# You need to modify txsplain's lookup_ledger function for this code to work.
# The code as published doesn't have expand=True. (It's a trivial change though.)
#
# Also This script also doesn't do any error handling (e.g. if one side of your
# search goes beyond the current ledger, it'll just die)

def search_ledger(ledger_index, tx_type):
    ledger = txsplain.lookup_ledger(ledger_index=ledger_index, expand=True)
    for tx in ledger["transactions"]:
        if tx["TransactionType"] == tx_type:
            return tx["hash"]

    return False

ledger_index_start = 21225285
offset = 1
while 1:
    li = ledger_index_start + offset
    print("Searching ledger", li)
    tx_hash = search_ledger(li, "EnableAmendment")
    if tx_hash:
        print("Found in ledger %d: hash %s" % (li, tx_hash))
        break

    li = ledger_index_start - offset
    print("Searching ledger", li)
    tx_hash = search_ledger(li, "EnableAmendment")
    if tx_hash:
        print("Found in ledger %d: hash %s" % (li, tx_hash))
        break

    offset += 1