fixed transaction import

src/core/client.py

@@ -8,10 +8,10 @@ from typing import Any, Dict, List, Optional, Tuple, Union
 from solana.rpc.async_api import AsyncClient
 from solana.rpc.commitment import Confirmed
 from solana.rpc.types import TxOpts
-from solana.transaction import Transaction
 from solders.instruction import Instruction
 from solders.keypair import Keypair
 from solders.pubkey import Pubkey
+from solders.transaction import Transaction
 
 from src.utils.logger import get_logger
 

src/trading/base.py

@@ -64,10 +64,10 @@ class TradeResult:
     """Result of a trading operation."""
 
     success: bool
-    tx_signature: Optional[str] = None
-    error_message: Optional[str] = None
-    amount: Optional[float] = None
-    price: Optional[float] = None
+    tx_signature: str | None = None
+    error_message: str | None = None
+    amount: float | None = None
+    price: float | None = None
 
 
 class Trader(ABC):

src/trading/buyer.py

@@ -10,11 +10,11 @@ import spl.token.instructions as spl_token
 from solana.rpc.async_api import AsyncClient
 from solana.rpc.commitment import Confirmed
 from solana.rpc.types import TxOpts
-from solana.transaction import Transaction
 from solders.instruction import AccountMeta, Instruction
 from solders.keypair import Keypair
 from solders.pubkey import Pubkey
 from solders.system_program import TransferParams, transfer
+from solders.transaction import Transaction
 from spl.token.instructions import get_associated_token_address
 
 from src.core.client import SolanaClient

src/trading/seller.py

@@ -6,9 +6,9 @@ import asyncio
 import struct
 from typing import Optional
 
-from solana.transaction import Transaction
 from solders.instruction import AccountMeta, Instruction
 from solders.pubkey import Pubkey
+from solders.transaction import Transaction
 
 from src.core.client import SolanaClient
 from src.core.curve import BondingCurveManager