change

app.py

@@ -25,7 +25,7 @@ st.title("AutoAssess")
 st.write("If you see this, the basic app is loading correctly!")
 
 # Upload folder of images
-uploaded_files = sorted(st.file_uploader("Upload a folder of student essays (images)", type=['jpg', 'jpeg', 'png'], accept_multiple_files=True))
+uploaded_files = st.file_uploader("Upload a folder of student essays (images)", type=['jpg', 'jpeg', 'png'], accept_multiple_files=True)
 
 # replace uploaded files with files loading from directory
 # image_dir = "data/images"
@@ -49,6 +49,7 @@ if st.button("Process Essays"):
     if not uploaded_files or not essay_question or not grading_criteria or not excel_file:
         st.warning("Please upload all required files and enter necessary information.")
     else:
+        uploaded_files = sorted(uploaded_files, key=lambda x: x.name)
         # Process student info file
         workbook = load_workbook(excel_file)