#!/usr/bin/env python

import sys
import time

try:
    timeout_index = sys.argv.index('-t')
    timeout = float(sys.argv[timeout_index + 1])
    del sys.argv[timeout_index]
    del sys.argv[timeout_index]
except:
    timeout = 0.1

files = sys.argv[1:]
if not files: files = ['-']

for file in files:
    if file == '-':
        fin = sys.stdin
    else:
        fin = open(file, 'r')

    for line in fin:
        sys.stdout.write(line)
        sys.stdout.flush()
        time.sleep(timeout)

    fin.close()