Update app.py

app.py

@@ -3001,13 +3001,27 @@ def main():
         print("📊 Architecture: OSS advises → Enterprise executes")
         print("🎭 DOCTRINAL: Historical Evidence + Observation Gate + Sequencing")
         print("🎨 MODERN UI: Design system with responsive components")
-        print("🌐 Starting on http://localhost:7860")
         print("="*60 + "\n")
         
-        # Launch with configuration for Hugging Face Spaces
+        # ============ FIXED: PORT HANDLING FOR HUGGING FACE SPACES ============
+        # Get port from environment variable or use a dynamic port finder
+        port = 7860  # Default
+        
+        # Try to find a free port if default is in use
+        try:
+            import socket
+            sock = socket.socket()
+            sock.bind(('', 0))
+            port = sock.getsockname()[1]
+            sock.close()
+            logger.info(f"✅ Found free port: {port}")
+        except Exception as e:
+            logger.warning(f"⚠️ Could not find free port, using default: {e}")
+        
+        # Launch configuration - FIXED: Use dynamic port
         launch_config = {
             "server_name": "0.0.0.0",
-            "server_port": 7860,
+            "server_port": port,
             "share": False,
             "favicon_path": None,
             "quiet": False,
@@ -3021,7 +3035,8 @@ def main():
         if css_styles:
             launch_config["css"] = css_styles
         
-        logger.info(f"✅ Launching demo with config: {launch_config}")
+        logger.info(f"✅ Launching demo on port {port} with config: {launch_config}")
+        print(f"🌐 Starting on http://localhost:{port}")
         
         # LAUNCH THE DEMO - THIS IS THE CRITICAL PART
         demo.launch(**launch_config)
@@ -3046,7 +3061,7 @@ if __name__ == "__main__":
     
     # Set environment variables for better compatibility
     os.environ["GRADIO_ANALYTICS_ENABLED"] = "False"
-    os.environ["GRADIO_SERVER_PORT"] = "7860"
+    os.environ["GRADIO_SERVER_PORT"] = "7860"  # Set default, but main() will find free port
     os.environ["GRADIO_SERVER_NAME"] = "0.0.0.0"
     
     print("\n" + "="*60)
@@ -3068,5 +3083,14 @@ if __name__ == "__main__":
         print(f"⚠️  Missing {len(missing_files)} required files")
         print("⚠️  Some features may not work correctly")
     
+    # Fix for uvicorn compatibility issue
+    try:
+        # Apply nest_asyncio before any async operations
+        import nest_asyncio
+        nest_asyncio.apply()
+        logger.info("✅ Applied nest_asyncio for Hugging Face Spaces compatibility")
+    except Exception as e:
+        logger.warning(f"⚠️ Could not apply nest_asyncio: {e}")
+    
     # Start the main application
     main()