Baca file txt dan menghitung nilai rata-rata

nilai_rata_rata.py

def rataRata(files, index_count, index_identity) :
    nilai = []
    for file in files:
        a = ''
        b = ''
        with open('./' + file) as f:
            a = f.read()
            a = a.replace('\n', '-')
            a = a.split('-');
            nilai_mentah = []
            student_identity = []
            for x in a:
                y = x.split(':')
                if y[0] in index_identity:
                    student_identity.append(y)
                if y[0] in index_count:
                    nilai_mentah.append(int(y[1]))
            
            nilai_mentah_rata_rata = sum(nilai_mentah) / len(index_count)
            nilai_mentah_rata_rata = round(nilai_mentah_rata_rata, 2)
            hasil = [student_identity, nilai_mentah_rata_rata]
            nilai.append(hasil)
            f.close()
    
    for x in nilai:
        print('========================================')
        print(x[0][0][0] + ': \t\t' + x[0][0][1])
        print(x[0][1][0] + ': \t\t' + x[0][1][1])
        print('Nilai rata: \t', x[1])
        
    print('========================================')
        
        
if __name__ == "__main__":
    files = ["myfile.txt", "myfile2.txt"];
    index_count = ['Q1', 'Q2', 'Q3', 'T1', 'T1', 'T3', 'CL01', 'CL02', 'CL03'];
    index_identity = ['Nama', 'Nim']
    rataRata(files, index_count, index_identity)