Purgate files older than the given days.

purgate_files.py

#!/usr/bin/env python

import os, time, sys, datetime

path = "/foo/bar"
days = 30
threshold = days * 86400

now = time.time()
timestamp = datetime.datetime.fromtimestamp(now).strftime('%Y-%m-%d %H:%M:%S')

for f in os.listdir(path):
    f_path = os.path.join(path, f)
    if os.stat(f_path).st_mtime < now - threshold and os.path.isfile(f_path):
        print "%s | Removing %s" % (timestamp, f_path)
        os.remove(f_path)