python Test

Prompt

create a python script using classes that will take a csv file and clean it up. Here is an example file: student_id,topic,subtopic,tier,correct,answered_at,time_ms s01,algebra,linear_eq,2,Y,2026-09-21T07:41:09,18400 s01,coord_geom,slope,1,false,2026-09-21T07:42:30,9100 s02,algebra,linear_eq,,1,2026-09-21 07:50,12000 s02,algebra,factorise,3,maybe,2026-09-21T07:55:02,-40 s01,algebra,linear_eq,2,TRUE,2026-09-21T07:44:10,15200 s01,algebra,expand,1,n,2026-09-21T07:46:00,22000 s03,coord_geom,midpoint,1,yes,2026-09-22T08:01:00,7000 s03,coord_geom,midpoint,1,0,21/09/2026 08:03,6500 s02,algebra,linear_eq,2,Y,2026-09-21T07:52:40 s01,algebra,linear_eq,3,1,2026-09-21T07:48:30,19800 s03,coord_geom,slope,2,true,2026-09-22T08:05:12,11000