Update app.py

app.py

@@ -148,6 +148,7 @@ def table_description():
        Returns:
            table_description (String): The table's column names and their data types.
    """
+    inspector = inspect(engine)
    try:
        columns_info = [(col["name"], col["type"]) for col in inspector.get_columns(PATHS.TABLE_NAME)]
        table_description = "Columns:\n" + "\n".join([f" - {name}: {col_type}" for name, col_type in columns_info])
@@ -163,6 +164,7 @@ def table_check()-> str:
         Returns:
             (String): A message containing table status.
     """
+    inspector = inspect(engine)
     try:
         if inspector.has_table(PATHS.TABLE_NAME):
             return f"Table '{PATHS.TABLE_NAME}' exists."
@@ -317,8 +319,7 @@ with gr.Blocks() as demo:
         gr.ChatInterface(fn=run_prompt, type="messages", chatbot=chatbot)
 
 if __name__ == "__main__":
-    inspector = inspect(engine)
-    # initialize agent once
+    # initialize agent 
     agent = agent_setup()
 
     demo.launch(debug=True)