Refactor code for improved readability and consistency in function definitions and error handling

app.py

@@ -68,15 +68,18 @@ if os.path.exists(cache_file):
 else:
     query_cache = {}
 
+
 def hash_query(query: str) -> str:
     """Generate a unique hash for the query."""
     return hashlib.sha256(query.encode("utf-8")).hexdigest()
 
+
 def save_cache():
     """Save the cache to a file."""
     with open(cache_file, "wb") as f:
         pickle.dump(query_cache, f)
 
+
 def init_embedding_model(
     model_name_or_path: str, model_revision: str = None, hf_token: str = None
 ) -> SentenceTransformer:
@@ -317,9 +320,7 @@ def format_search_results(abstract: str) -> tuple[pd.DataFrame, list[dict]]:
         papers = find_synergistic_papers(abstract)
     except ValueError as e:
         error_message = str(e)
-        df = pd.DataFrame(
-            [{"Error": error_message}]
-        )
+        df = pd.DataFrame([{"Error": error_message}])
         return df, []
 
     # Convert to DataFrame for display
@@ -475,7 +476,9 @@ def create_interface():
                             key="paper_details",
                         )
                         analyze_btn = gr.Button("Analyze Connection", variant="primary", visible=False)
-                        with gr.Accordion(label="Feedback and Flagging", open=True, visible=False) as paper_feedback_accordion:
+                        with gr.Accordion(
+                            label="Feedback and Flagging", open=True, visible=False
+                        ) as paper_feedback_accordion:
                             gr.Markdown(
                                 """
                                 Please provide feedback on the relevance of this paper to your input.
@@ -602,7 +605,10 @@ def create_interface():
                     outputs=[paper_details_output, selected_paper_state],
                     api_name=False,
                 ).then(
-                    lambda: (gr.update(visible=True), gr.update(visible=True)),  # Show analyze button and feedback accordion
+                    lambda: (
+                        gr.update(visible=True),
+                        gr.update(visible=True),
+                    ),  # Show analyze button and feedback accordion
                     outputs=[analyze_btn, paper_feedback_accordion],
                     api_name=False,
                 )