csv.reader(): Limit the number of columns read in Windows

[Pedroski55]

Well, thanks for trying!

Don't spoil your holiday!

I opened the csv file with gedit, a Linux text editor, if you know it.

These are the contents of my .csv file. No line is 1025 items long!!:

,,,,max Attendance,,,Max Score,425,,,,50,25,,50,25,,50,25,,50,25,,50,25,,0,25,,0,25,
,,,23名,8,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Photo,phone,学号,姓名,出勤,出勤率,期末分数,得分率,得分,HW,CW,Week 16,HW,CW,Week 15,HW,CW,Week 14,HW,CW,Week 13,HW,CW,Week 12,HW,CW,Week 11,HW,CW,Week 10,HW,CW,Week 9
,,1921030146,聂林,0,0,0,0,0,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
,,1921090147,郜阳杰,0,0,0,0,0,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
,,1922190144,汪毓韬,0,0,0,0,0,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
,,1923010312,张长乐,7,100,100,100,425,,,,50,25,1,50,25,1,50,25,1,50,25,1,50,25,1,0,25,1,0,25,1
,,1925010121,陈尚,4,57.1,47.6,41.2,175,,,,0,25,1,50,25,1,0,0,0,0,25,0,0,25,1,0,25,1,0,0,0
,,1926070127,蒲瑞杰,6,85.7,83.7,82.4,350,,,,50,25,1,50,25,1,50,25,1,50,25,1,0,25,1,0,25,1,0,0,0
,,1926070150,张旭,1,14.3,9.3,5.9,25,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,25,1,0,0,0,0,0,0
,,1926080140,陈子华,0,0,0,0,0,,,,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
,,1926080205,王天亮,5,71.4,56.8,47.1,200,,,,0,25,0,0,25,1,0,25,1,0,25,1,50,25,1,0,25,1,0,0,0
,,1926080209,闫怀壮,3,42.9,27.7,17.6,75,,,,0,0,0,0,0,0,0,0,0,0,25,1,0,25,1,0,25,1,0,0,0
,,1926080216,朱增援,6,85.7,84.4,83.5,355,,,,50,25,0,40,25,1,0,25,1,40,25,1,50,25,1,0,25,1,0,25,1
,,1926080230,杨澜,6,85.7,62.5,47.1,200,,,,0,25,1,0,25,1,0,25,1,0,25,1,50,25,1,0,25,1,0,0,0
,,1926080234,张建军,6,85.7,62.5,47.1,200,,,,0,25,1,0,25,1,0,25,1,0,25,1,50,25,1,0,25,1,0,0,0
,,1926080243,游杰,7,100,100,100,425,,,,50,25,1,50,25,1,50,25,1,50,25,1,50,25,1,0,25,1,0,25,1
,,1926080254,王润迪,6,85.7,62.5,47.1,200,,,,0,25,1,0,25,1,0,0,0,0,25,1,50,25,1,0,25,1,0,25,1
,,1927040125,黄楚兰,7,100,91.5,85.9,365,,,,50,25,1,50,25,1,0,25,1,40,25,1,50,25,1,0,25,1,0,25,1
,,1928040103,曹予曦,5,71.4,46.2,29.4,125,,,,0,0,0,0,25,1,0,0,0,0,25,1,0,25,1,0,25,1,0,25,1
,,1928040213,严昕,5,71.4,53.3,41.2,175,,,,0,25,1,0,25,1,0,25,1,0,25,1,50,25,1,0,0,0,0,0,0
,,1929020321,伍竹,5,71.4,46.2,29.4,125,,,,0,25,1,0,0,0,0,25,1,0,25,1,0,25,1,0,25,1,0,0,0
,,1929020325,张清源,6,85.7,55.5,35.3,150,,,,0,25,1,0,0,0,0,25,1,0,25,1,0,25,1,0,25,1,0,25,1
,,1929020329,章明慧,7,100,57.6,29.4,125,,,,0,25,1,0,25,1,0,0,1,0,25,1,0,25,1,0,25,1,0,0,1
,,1929030133,丁桃园,7,100,70.4,50.6,215,,,,0,25,1,40,25,1,0,25,1,0,25,1,0,25,1,0,25,1,0,25,1
,,1929050140,石楷,7,100,90.1,83.5,355,,,,50,25,1,0,25,1,50,25,1,50,25,1,30,25,1,0,25,1,0,25,1