import datetime

tmp = (datetime.date.today() - datetime.timedelta(days=6)).strftime("%Y%m%d_%H%M%S")

print(tmp)

#!/usr/bin/python
# coding=utf-8
#

import time
import datetime

# 今天日期
today = datetime.date.today()

# 昨天時間
yesterday = today - datetime.timedelta(days=1)

# 明天時間
tomorrow = today + datetime.timedelta(days=1)

acquire = today + datetime.timedelta(days=2)

# 昨天開始時間戳
yesterday_start_time = int(time.mktime(time.strptime(str(yesterday), '%Y-%m-%d')))

# 昨天結束時間戳
yesterday_end_time = int(time.mktime(time.strptime(str(today), '%Y-%m-%d'))) - 1

# 今天開始時間戳
today_start_time = yesterday_end_time + 1

# 今天結束時間戳
today_end_time = int(time.mktime(time.strptime(str(tomorrow), '%Y-%m-%d'))) - 1

# 明天開始時間戳
tomorrow_start_time = int(time.mktime(time.strptime(str(tomorrow), '%Y-%m-%d')))

# 明天結束時間戳
tomorrow_end_time = int(time.mktime(time.strptime(str(acquire), '%Y-%m-%d'))) - 1

print '今天時間戳'
print today_start_time
print today_end_time
print '昨天時間戳'
print yesterday_start_time
print yesterday_end_time
print '明天時間戳'
print tomorrow_start_time
print tomorrow_end_time