convert_fer2013.py

import csv
import os

database_path = 'E:/Python/DeepLearning/emotion_classifier/fer2013/'
datasets_path = './fer2013/'
csv_file = database_path+'fer2013.csv'
train_csv = datasets_path+'train.csv'
val_csv = datasets_path+'val.csv'
test_csv = datasets_path+ 'test.csv'


with open(csv_file) as f:
    csvr = csv.reader(f)
    header = next(csvr)
    print(header)
    rows = [row for row in csvr]
    
    trn = [row[:-1] for row in rows if row[-1] == 'Training']
    csv.writer(open(train_csv, 'w+'), lineterminator='\n').writerows([header[:-1]] + trn)
    print(len(trn))

    val = [row[:-1] for row in rows if row[-1] == 'PublicTest']
    csv.writer(open(val_csv, 'w+'), lineterminator='\n').writerows([header[:-1]] + val)
    print(len(val))        

    tst = [row[:-1] for row in rows if row[-1] == 'PrivateTest']
    csv.writer(open(test_csv, 'w+'), lineterminator='\n').writerows([header[:-1]] + tst)
    print(len(tst))