Is there a way to read a .txt file and store each line to memory?

Question

I am making a little program that will read and display text from a document. I have got a test file which looks like this:

12,12,12
12,31,12
1,5,3
...
         


        

Answer 1

with open('test.txt') as o:
    for i,t in enumerate(o.readlines(), 1):
        print ("%s. %s"% (i, t))