Update chatbot_rag.py

chatbot_rag.py

@@ -95,8 +95,12 @@ def build_qa():
 
     # 6. Helper functions
     def format_docs(docs):
-        # ✅ skip any docs where page_content is None
-        return "\n".join(d.page_content for d in docs if d.page_content)
+    """Join document contents into a single string, skipping empty ones."""
+        texts = []
+        for doc in docs:
+            if doc.page_content and isinstance(doc.page_content, str):
+                texts.append(doc.page_content.strip())
+        return "\n".join(texts)
 
 
     def hf_to_str(x):