I write a helpers.py as following. ok to compare to files with lines. but i don't know how to link it with compare.py. I know the staff said no need to open the file, the compare did it. But how do i load the string (a, b) from compare.py? Thanks.
from sys import argv import sys file1 = sys.argv file2 = sys.argv def lines(a, b): """Return lines in both a and b""" return result alines = set() with open(file1, "r") as file1: for line in file1: alines.add(line.rstrip("\n")) blines = set() with open(file2, "r") as file2: for lines2 in file2: blines.add(lines2.rstrip("\n")) result = alines & blines print(lines(alines, blines))