device tensor fix

core/standardized_data_provider.py

@@ -449,5 +449,37 @@ class StandardizedDataProvider(DataProvider):
             
             logger.info("Stopped real-time processing for standardized data")
             
+        except Exception as e:
+            logger.error(f"Error stopping real-time processing: {e}")
+    
+    def get_recent_prices(self, symbol: str, limit: int = 10) -> List[float]:
+        """
+        Get recent prices for a symbol
+        
+        Args:
+            symbol: Trading symbol
+            limit: Number of recent prices to return
+        
+        Returns:
+            List[float]: List of recent prices
+        """
+        try:
+            # Get recent OHLCV data using parent class method
+            df = self.get_historical_data(symbol, '1m', limit)
+            if df is None or df.empty:
+                return []
+            
+            # Extract close prices from DataFrame
+            if 'close' in df.columns:
+                prices = df['close'].tolist()
+                return prices[-limit:]  # Return most recent prices
+            else:
+                logger.warning(f"No 'close' column found in OHLCV data for {symbol}")
+                return []
+            
+        except Exception as e:
+            logger.error(f"Error getting recent prices for {symbol}: {e}")
+            return []
+            
         except Exception as e:
             logger.error(f"Error stopping real-time processing: {e}")