Update langchain_movie_search.py

langchain_movie_search.py

@@ -61,6 +61,9 @@ class MoviesSearch:
         :param query: A user query to search
         :return: String answer generated by the LLM
         """
+        if len(query) == 0:
+            raise gr.Error("Enter a prompt to generate a response !", duration=5)
+
         hf_llm: HuggingFaceEndpoint = HuggingFaceEndpoint(
             repo_id=self.huggingface_text_generation_model,
             huggingfacehub_api_token=self.huggingface_api_token,