0;Филиал;А;Б;
1;2;3;4;
показатель1;0;10;5;

import csv
with open ('01.csv') as otchet:
    finder = csv.reader (otchet, delimiter = ';', quotechar =  ';')
    for row in finder:
        print (','.join(row))

for row in finder:
    print row[0]

Traceback (most recent call last):
  File "C:\парсинг 01 недели.py", line 6, in <module>
    print (row[2])
IndexError: list index out of range

finder = csv.reader (otchet, delimiter = ';', quotechar =  ';')

finder = csv.reader[b] (otchet, delimiter = ';')