Update app.py

app.py

@@ -63,9 +63,8 @@ def process_files(ground_truth_file, pdf_files):
         'rag_demo.documents',
         {'document': pxt.DocumentType()}
     )
-
-    for pdf_file in pdf_files:
-        documents_t.insert({'document': pdf_file.name})
+    
+    documents_t.insert({'document': file.name} for file in pdf_files if file.name.endswith('.pdf'))
 
      # Create chunks view
     chunks_t = pxt.create_view(