1 string = "word 2 3 4 5 6 7" 2 string = ",".join(string.split()) 3 4 5 6 import numpy as np 7 import pandas as pd 8 a = pd.read_csv('list_landmarks_align_celeba.txt') 9 print(a) 10 f = open("list_landmarks_align_celeba.txt","r") 11 for line in f.readlines(): 12 line = ",".join(line.split()) 13 print(line) 14 print(line[3]) 15 # print(line[ :2]) 16 # print(line[::2])