lookup.py

from os import walk
from os.path import join
from threading import Timer
from subprocess import call
from datetime import datetime


def do(f, time, *args):
    f(*args)
    Timer(time, lambda: do(f, time, *args)).start()


def watch():
    path = '/Users/admire/Desktop/'
    watch_file_extension = 'xls'
    cp_path = '/Users/admire/Desktop/secret/%s.%s' % (datetime.now(),
                                                      watch_file_extension)
    for p, _, files in walk(path):
        for f in files:
            if f.endswith(watch_file_extension):
                call(['cp',
                      join(p, f),
                      cp_path], shell=True)


if __name__ == '__main__':
    do(watch, 50)