Update app.py

app.py

@@ -175,8 +175,8 @@ def vector_search(question):
     if result:
         sources_list = result['sources'].split(', ')
         filenames_with_extension = [os.path.basename(source) for source in sources_list]
-        filename_without_extension = os.path.splitext(filename_with_extension)[0]
-        cleaned_sources = "\n- ".join(cleaned_sources) 
+        filename_without_extension = [os.path.splitext(source)[0] for source in filenames_with_extension]
+        cleaned_sources = "\n- ".join(filename_without_extension) 
     
     else: 
         pass