time transform

timetool.py

#coding=utf8
from datetime import datetime, timedelta, date
import time
from time import struct_time
from time import localtime

"""
%y 两位数的年份表示（00-99）
%Y 四位数的年份表示（000-9999）
%m 月份（01-12）
%d 月内中的一天（0-31）
%H 24小时制小时数（0-23）
%I 12小时制小时数（01-12）
%M 分钟数（00=59）
%S 秒（00-59）
%a 本地简化星期名称
%A 本地完整星期名称
%b 本地简化的月份名称
%B 本地完整的月份名称
%c 本地相应的日期表示和时间表示
%j 年内的一天（001-366）
%p 本地A.M.或P.M.的等价符
%U 一年中的星期数（00-53）星期天为星期的开始
%w 星期（0-6），星期天为星期的开始
%W 一年中的星期数（00-53）星期一为星期的开始
%x 本地相应的日期表示
%X 本地相应的时间表示
%Z 当前时区的名称
%% %号本身
"""

##format to datetime string
def tos_datetime(t):
	ret = ''
	if type(t) == datetime or type(t) == date:
		ret = t.strftime('%Y-%m-%d %H:%M:%S')
	if type(t) == int or type(t) == float:
		ret = datetime.utcfromtimestamp(t).strftime('%Y-%m-%d %H:%M:%S')
	if type(t) == struct_time:
		ret = time.strftime('%Y-%m-%d %H:%M:%S', t)
	return ret
##format to date string
def tos_date(t):
	ret = ''
	if type(t) == datetime or type(t) == date:
		ret = t.strftime('%Y-%m-%d')
	if type(t) == int or type(t) == float:
		ret = datetime.utcfromtimestamp(t).strftime('%Y-%m-%d')
	if type(t) == struct_time:
		ret = time.strftime('%Y-%m-%d', t)
	return ret
##format to any string
def tos_(t, format):
	ret = ''
	if type(t) == datetime or type(t) == date:
		ret = t.strftime(format)
	if type(t) == int or type(t) == float:
		ret = datetime.utcfromtimestamp(t).strftime(format)
	if type(t) == struct_time:
		ret = time.strftime(format, t)
	return ret

#any to time
def to_time(t):
	ret = None
	if type(t) == datetime:
		ret = time.mktime(t.utctimetuple())
	if type(t) == float or type(t) == int:
		ret = t
	if type(t) == timedelta:
		ret = t.total_seconds()
	if type(t) == struct_time:
		ret = time.mktime(t)
	if type(t) == date:
		ret = time.mktime(t.timetuple())
	return ret
#any to datetime
def to_datetime(t):
	ret = None
	if type(t) == datetime:
		ret = t
	if type(t) == int or type(t) == float:
		ret = datetime.utcfromtimestamp(t)
	if type(t) == struct_time:
		ret = datetime.utcfromtimestamp(time.mktime(t))
	if type(t) == date:
		ret = datetime.utcfromtimestamp(time.mktime(t.timetuple()))
	return ret
#any to tuple
def to_tuple(t):
	ret = None
	if type(t) == datetime:
		ret = t.utctimetuple()
	if type(t) == int or type(t) == float:
		ret = localtime(t)
	if type(t) == struct_time:
		ret = t
	if type(t) == date:
		ret = t.timetuple()
	if type(t) == timedelta:
		ret = localtime(t.total_seconds())
	return ret
#any to date
def to_date(t):
	ret = None
	if type(t) == datetime:
		ret = t.date()
	if type(t) == int or type(t) == float:
		ret = datetime.utcfromtimestamp(t).date()
	if type(t) == struct_time:
		ret = datetime.utcfromtimestamp(time.mktime(t)).date()
	if type(t) == date:
		ret = t
	return ret
#any to timedelta
def to_timedelta(t):
	ret = None
	if type(t) == int or type(t) == float:
		ret = timedelta(t)
	if type(t) == timedelta:
		ret = t
	if type(t) == struct_time:
		ret = timedelta(time.mktime(t))

#string to datetime
def sto_datetime(s, format):
	return datetime.strptime(s, format)
#string to time
def sto_time(s, format):
	return time.mktime(time.strptime(s, format))
#string to timedelta
def sto_timedelta(s, format):
	return timedelta(time.mktime(time.strptime(s, format)))
#string to struct tuple
def sto_tuple(s, format):
	return time.strftime(s, format)
#string to date
def sto_date(s, format):
	return datetime.strptime(s, format).date()