Update app.py

app.py

@@ -61,7 +61,7 @@ class AttendanceTracker:
 
         for name, statuses in existing_data.items():
             # Append new status for the new column
-            status = "Present" if name in new_attendance_list else "Absent"
+            status = "Present" if name.lower() in new_attendance_list.lower() else "Absent"
             statuses.append(status)
             updated_rows.append([name] + statuses)