[Python] why do i keep getting this ERROR - ❌ Transaction signing failed:...

i keep getting this error here is the part of the script what am i doing wrong? i can not get the to fully complete the transaction i am using this for a buy/sell volume bot

try: # ✅ Decode transaction bytes transaction_bytes = base64.b64decode(tx_data["swapTransaction"]) transaction = VersionedTransaction.from_bytes(transaction_bytes) # Ensure 'transaction' is properly defined

# ✅ Correct method to sign the transaction
transaction.sign([keypair])

# ✅ Serialize the signed transaction
signed_transaction_bytes = transaction.serialize()

# ✅ Send the signed transaction
response = sol_client.send_transaction(transaction, keypair)
txid = response.get("result", None)

if txid:
logging.info(f"✅ Trade executed successfully! TXID: {txid}")
return txid
else:
logging.warning(f"⚠️ Transaction may have failed: {response}")

except Exception as e:
logging.error(f"❌ Transaction signing failed: {str(e)}")
return None


ive tried this version to and get get hung up at the same place in the signing of the transaction

try: # ✅ Decode transaction bytes transaction_bytes = base64.b64decode(tx_data["swapTransaction"]) transaction = VersionedTransaction.from_bytes(transaction_bytes)

# ✅ FIX: Manually sign the transaction
message_bytes = bytes(transaction.message)
signature = keypair.sign_message(message_bytes)

# ✅ Attach the signature manually
transaction.signatures[0] = signature

# ✅ Send the signed transaction to Solana
txid = sol_client.send_transaction(transaction, keypair)

if txid:
logging.info(f"✅ {trade_type.capitalize()} executed successfully! TXID: {txid}")
return txid
else:
logging.warning(f"⚠️ Transaction {trade_type} may have failed: {txid}")

except Exception as e:
logging.error(f"❌ Transaction signing failed: {str(e)}")
return None

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