Is file object in python an iterable

Question

I have a file \"test.txt\":

this is 1st line
this is 2nd line
this is 3rd line

the following code

lines = open(\"test.txt\"         


        

Answer 1

Your are already at the end of the file. File objects are iterators. Once you iterate over them your are at the final position. Iterating again won't start from the beginning. If you would like to start at line one again, you need to use lines.seek(0).