Initial commit for fixing broken code: - Fixed ETF_Analyzer page config issue - Updated ETF_Portfolio_Builder with improved error handling and data validation

pages/ETF_Analyzer.py

@@ -1,3 +1,11 @@
+# Set page config first, before any other Streamlit commands
+st.set_page_config(
+    page_title="ETF Analyzer",
+    page_icon="📊",
+    layout="wide",
+    initial_sidebar_state="expanded"
+)
+
 """
 ETF Analyzer - Comprehensive ETF Analysis Tool
 
@@ -21,7 +29,46 @@ import time
 from typing import Dict, List, Tuple, Any, Optional, Union
 import sys
 import yfinance as yf
+from dotenv import load_dotenv
+import logging
 
+# Load environment variables
+load_dotenv()
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+# FMP API configuration
+FMP_API_KEY = st.session_state.get('fmp_api_key', os.getenv('FMP_API_KEY', ''))
+FMP_BASE_URL = "https://financialmodelingprep.com/api/v3"
+
+def test_fmp_connection():
+    """Test the FMP API connection and display status."""
+    try:
+        if not FMP_API_KEY:
+            return False, "No API key found"
+            
+        session = get_fmp_session()
+        test_url = f"{FMP_BASE_URL}/profile/AAPL?apikey={FMP_API_KEY}"
+        response = session.get(test_url)
+        
+        if response.status_code == 200:
+            data = response.json()
+            if data and isinstance(data, list) and len(data) > 0:
+                return True, "Connected"
+        return False, f"Error: {response.status_code}"
+    except Exception as e:
+        return False, f"Error: {str(e)}"
+
+# Add FMP connection status to the navigation bar
+st.sidebar.markdown("---")
+st.sidebar.subheader("FMP API Status")
+connection_status, message = test_fmp_connection()
+if connection_status:
+    st.sidebar.success(f"✅ FMP API: {message}")
+else:
+    st.sidebar.error(f"❌ FMP API: {message}")
 
 # --- Constants and Settings ---
 CACHE_DIR = Path("cache")