Vector convert from txt file in Python

Question

Read txt, convert each number to int, comma separated in Python

Hello everybody! I need to read a txt file with a variable number of lines, each line has the following structure:

1,6,11,15,47
1,2,11,25,34
1,38,40,46,50

5 random numbers per line ranging from 1 to 50, I can read it and save it to the list but I can't get it to be like int.

I'm reading it like this:

import random
from os import system 
system('clear')

fileTxt = open('filetxt.txt', "r")
mainList = []

def createList():
    card = []
    for lineTxt in fileTxt:
        mainList.append(lineTxt.rsplit())

Can you help me? Thanks!