Initialize demo variable first, then create - ensure it's always set

app.py

@@ -843,9 +843,11 @@ IS_SPACES = (
     os.getenv("HF_SPACE_ID") is not None
 )
 
-# Create demo unconditionally at module level (like HF docs example)
+# Initialize demo variable to None first (safety measure)
+demo = None
+
+# Create demo at module level (like HF docs example)
 # This ensures Spaces can always find it when importing the module
-# For local execution, we'll still create it here but main() will also create its own
 try:
     if IS_SPACES:
         logger.info("Initializing for Hugging Face Spaces...")
@@ -895,8 +897,8 @@ except Exception as e:
     logger.info(f"Error demo created: {type(demo)}")
 
 # Final verification - ensure demo exists and is valid
-if 'demo' not in globals() or demo is None:
-    logger.error("CRITICAL: Demo variable is not set!")
+if demo is None:
+    logger.error("CRITICAL: Demo variable is None!")
     with gr.Blocks() as demo:
         gr.Markdown("# Error: Demo was not created properly\n\nPlease check the logs for details.")
 elif not isinstance(demo, (gr.Blocks, gr.Interface)):
@@ -904,7 +906,7 @@ elif not isinstance(demo, (gr.Blocks, gr.Interface)):
     with gr.Blocks() as demo:
         gr.Markdown(f"# Error: Invalid demo type\n\nDemo type: {type(demo)}\n\nPlease check the logs for details.")
 else:
-    logger.info(f"✅ Final demo check passed: demo={demo}, type={type(demo)}")
+    logger.info(f"✅ Final demo check passed: demo type={type(demo)}")
 
 # For local execution only (not on Spaces)
 if __name__ == "__main__":