Format all code.

fetch_close_price.py

@@ -13,26 +13,25 @@ if __name__ == "__main__":
     if len(sys.argv) < 2:
         # Exit with an error code if no ticker is provided
         sys.exit(1)
-    
+
     ticker_symbol = sys.argv[1]
-    
+
     try:
         # Instead of the global yf.download(), we use the Ticker object's .history() method.
         # This uses a different internal code path that we have proven is stable.
         ticker = yf.Ticker(ticker_symbol)
         data = ticker.history(period="2d", auto_adjust=False)
-        # --- END OF FIX ---
-        
+
         closing_price = None
         if not data.empty:
-            last_close_raw = data['Close'].iloc[-1]
+            last_close_raw = data["Close"].iloc[-1]
             if pd.notna(last_close_raw):
                 closing_price = float(last_close_raw)
-        
+
         # On success, print JSON to stdout and exit cleanly
         print(json.dumps({"closing_price": closing_price}))
         sys.exit(0)
     except Exception:
         # If any error occurs, print an empty JSON and exit with an error code
         print(json.dumps({"closing_price": None}))
-        sys.exit(1)
+        sys.exit(1)