Sends the file to STDOUT in a line by line manner.

linesender.py

import argparse
import time
import sys


def read_by_line(input, delay, is_recourse):
    while True:
        input.seek(0)
        for line in input:
            sys.stdout.write(line)
            time.sleep(delay/1000.0)
        if not is_recourse:
            break


if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='Sends a given file to stdout in per line manner.')
    parser.add_argument('-r', action='store_true', default=False, dest='is_recourse',
                        help='send the file lines again and again.')
    parser.add_argument('-d', action='store', default=250, dest='delay', type=int,
                        help='delay in milliseconds, by default 250ms.')
    parser.add_argument('input', type=file, help='source file')
    args = parser.parse_args()

    try:
        read_by_line(args.input, args.delay, args.is_recourse)
    except KeyboardInterrupt:
        pass

    sys.exit(0)