利用python删除历史文件

'''
Created on 2011-5-21
@author: kuangtu
'''
#coding=utf-8
import os
import datetime
import time
#获得当前日期
today = datetime.date.today()
#获得历史日期，本例中为14天之前
twoweek= datetime.timedelta(days=-14)
leastday = today + twoweek
print(today)
print(leastday)
dir = "C://dest//files"

def deleteFile():
files = os.listdir(dir)
for f in files:
destfile = os.path.join(dir,f);
if (os.path.isfile(destfile)):
name = os.path.splitext(f)[0]
postfix = os.path.splitext(f)[1]
#获得文件后缀，只是针对.zip文件
if (postfix == ".zip"):
print(name)
#获得该文件的创建日期，modifytime为元组
modifytime = time.localtime((os.path.getmtime(destfile)))
year = modifytime[0]
month = modifytime[1]
day = modifytime[2]
#将日期初始化为date对象
filedate = datetime.date(year, month, day)
#比较日期，删除较早的文件
if (leastday > filedate):
print("delete old file")
os.remove(destfile)

if __name__ == '__main__':
deleteFile()