Rewritten financial data fetching so it finally works again.

fetch_market_cap.py

@@ -0,0 +1,28 @@
+# fetch_market_cap.py
+# This script does ONLY ONE THING: gets the market cap.
+import sys
+import json
+import yfinance as yf
+import logging
+
+# Suppress verbose yfinance logging in this isolated process
+logging.getLogger("yfinance").setLevel(logging.CRITICAL)
+
+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:
+        # Directly get the market cap
+        market_cap = yf.Ticker(ticker_symbol).info.get('marketCap')
+        
+        # On success, print JSON to stdout and exit cleanly
+        print(json.dumps({"market_cap": market_cap}))
+        sys.exit(0)
+    except Exception:
+        # If any error occurs, print an empty JSON and exit with an error code
+        print(json.dumps({"market_cap": None}))
+        sys.exit(1)