optz

py-client/libs/orderbook.py

@@ -1,13 +1,12 @@
 """SQLite positions and deals, aligned with SDK models; one writer per database."""
 
-from __future__ import annotations
-
 import math
 import sqlite3
 from contextlib import closing
 from dataclasses import asdict, fields
 from datetime import datetime
 from pathlib import Path
+from itertools import chain
 
 from sdk import DealItem, PositionItem
 
@@ -106,7 +105,7 @@ class OrderBook:
             raise ValueError('System order ID and positive volume are required')
         
         row = asdict(deal)
-        row['order_local_id'] = deal.get_local_order_id()
+        row['order_local_id'] = deal.local_order_id
         if not row['order_local_id']:
             raise ValueError('Local order ID is required')
         
@@ -145,7 +144,7 @@ class OrderBook:
                 raise ValueError('Execution history is append-only')
             new_deals = deals[len(self.deals):]
         positions = [{**POSITION_DEFAULTS, **item} for item in items.values()]
-        for row in [*positions, *new_deals]:
+        for row in chain(positions, new_deals):
             if any(isinstance(value, float) and not math.isfinite(value) for value in row.values()):
                 raise ValueError('Numeric values must be finite')
         with closing(self._connect()) as db, db: