def sign_transaction(c,tx_hex,tx_num_str,sig_data,keys=None):
if keys:
qmsg("Passing %s key%s to bitcoind" % (len(keys),suf(keys,"k")))
dmsg("Keys:\n %s" % "\n ".join(keys))
msg_r("Signing transaction{}...".format(tx_num_str))
from mmgen.rpc import exceptions
try:
sig_tx = c.signrawtransaction(tx_hex,sig_data,keys)
except exceptions.InvalidAddressOrKey:
msg("failed\nInvalid address or key")
sys.exit(3)
return sig_tx
if change > 0 and not change_addr:
msg(wmsg['throwaway_change'] % change)
sys.exit(2)
if change_addr in tx_out and not change:
msg("Warning: Change address will be unused as transaction produces no change")
del tx_out[change_addr]
for k,v in tx_out.items(): tx_out[k] = float(v)
if change > 0: tx_out[change_addr] = float(change)
tx_in = [{"txid":i.txid, "vout":i.vout} for i in sel_unspent]
dmsg("tx_in: %s\ntx_out: %s" % (repr(tx_in),repr(tx_out)))
if opt.comment_file:
if keypress_confirm("Edit comment?",False):
comment = get_tx_comment_from_user(comment)
else:
if keypress_confirm("Add a comment to transaction?",False):
comment = get_tx_comment_from_user()
else: comment = False
tx_hex = c.createrawtransaction(tx_in,tx_out)
qmsg("Transaction successfully created")
amt = send_amt or change
tx_id = make_chksum_6(unhexlify(tx_hex)).upper()
metadata = tx_id, amt, make_timestamp()