Untitled

with open("global.txt", "r") as f:
    filtr = input("Subject-University: ")
    output_file = input("file name: ")
    with open(f"{output_file}.txt", "w") as kosai:
        kosai.write("Serial - Merit - Roll - Name\n")
    for line in f:
        lines = line.split()
        try:
            serial = int(lines[0])
            roll = int(lines[1])
            subject = lines[-1]
            merit = lines[-2]
            name = line.split(lines[1])[1].split(lines[-2])[0].strip()
            if subject == filtr:
                with open(f"{output_file}.txt", "a") as kosai:
                    kosai.write(f"{serial} - {merit} - {roll} - {name}\n")
        except ValueError:
            pass