Python Dlete a file older than x

pythonDeleteOlderThan.py

#!/usr/bin/python
# -*- coding: <utf-8> -*-
from __future__ import print_function
import os
import time

current_time = time.time()

for file in os.listdir():
    creation_time = os.path.getctime(file)
    if (current_time - creation_time) // (24 * 3600) >= 7:
        os.unlink(file)
        print('{} removed'.format(f))