Update app.py

app.py

@@ -38,7 +38,14 @@ def build_faiss_vectorstore(chunks):
 # Function to retrieve similar text
 def retrieve(query, vectorstore, top_k=5):
     docs_and_scores = vectorstore.similarity_search_with_score(query=query, k=top_k)
-    return docs_and_scores
+
+    # Correct handling of numpy float scores:
+    fixed_results = []
+    for doc, score in docs_and_scores:
+        if isinstance(score, np.floating):
+            score = float(score)  # Convert numpy float to standard Python float
+        fixed_results.append((doc, score))
+    return fixed_results
     
 class ChatRequest(BaseModel):
     message: str