tail -f for python

tail-and-quit.py

import subprocess, re
def tail_and_quit(filename, regex_to_match):
    try:
        f = subprocess.Popen(['tail', '-F', filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        while True:
            line = f.stdout.readline()
            match = re.search(regex_to_match, line)
            if match: break
    finally: f.kill()