ia,ib,ic,id,ie,if,ig
a,0,0,0,e,0,g
0,b,0,0,e,f,0
0,0,c,d,0,f,g

import pandas as pd
import enum

df = pd.read_csv('data.csv')

class Slices(enum.Enum):
    first = slice(0, 2)
    second = slice(4, 6)

def getCrosstab(*args):
    cols1 = []
    cols1.append(df.iloc[:, args[0].value])
    cols2 = []
    cols2.append(df.iloc[:, args[1].value])
    print( pd.crosstab(cols1, cols2) )

if __name__ == '__main__':
    getCrosstab(Slices.first, Slices.second)

col2 ie if ig
col1
ia   1  0  1
ib   1  1  0
ic   0  1  1