import os
import time

MAX_AGE = 60 * 60  # 1 hour


def cleanup(folder="jobs"):

    now = time.time()

    for f in os.listdir(folder):

        path = os.path.join(folder, f)

        if os.path.isfile(path):

            if now - os.path.getmtime(path) > MAX_AGE:
                os.remove(path)