python库-Arrow处理时间

　　Arrow是一个处理时间的python库，能一键转换dates/times/timestamps等时间格式而不需要大量导致各种时间模块和格式转换函数，十分快捷方便

 

使用Arrow需要两步转换操作：

　　1、接收各种类型的时间datetimes/date/timestamp转换为Arrow类型

　　2、转换为自己需要的格式或者操作

import arrow # 获取当前时间的Arrow格式 a = arrow.now() print(a) # 2018-03-08T23:21:21.981044+08:00 # 转换为时间戳 print(a.timestamp) # 1520522514 # 年月日 print(a.format('MM/DD/YYYY HH:mm:ss')) # 03/08/2018 23:22:43 # 星期 print(a.format('MMMM DD dd')) # March 08 # 时间戳转换为日期 timeStamp = 1730522598 b = arrow.get(timeStamp) print(b) # 2024-11-02T04:43:18+00:00 # 字符串转时间戳 c = '2009-01-01 23:00:00' d = arrow.get(c) print(d.timestamp) # 1230850800 # 90年后的日期 print(d.shift(years=90).format('YYYY/MM/DD HH:mm:ss')) # 2099/01/01 23:00:00 # 修改日期 print(d.replace(year=1992,month=2,days=18).format('YYYY-MM-DD HH:mm:ss')) # 1992-02-19 23:00:00

 

方法：

　　根据数据创建时间

　　arrow.Arrow(year, month, day, hour=0, minute=0, second=0, microsecond=0,tzinfo=None)

m = arrow.Arrow(2008,5,6 ) print(m) # 2008-05-06T00:00:00+00:00

　　get(*args, **kwargs)#接受各种时间并转换为arrow格式

　　

print(arrow.get('2009-09-01T01:34:43')) # 2009-09-01T01:34:43+00:00 print(arrow.get(datetime(2007,5,12))) # 2007-05-12T00:00:00+00:00 print(arrow.get(2013,5,5,12,30,45)) # 2013-05-05T12:30:45+00:00 print(arrow.get(date(2013, 5, 5))) # 2013-05-05T00:00:00+00:00

　　range(frame, start, end=None, tz=None, limit=None) 创建时间范围

start1 = datetime(2018,5,5,12,30) end1 = datetime(2018,5,5,17,15) for i in arrow.Arrow.range('hour', start1,end1): print(repr(i)) # <Arrow [2018-05-05T12:30:00+00:00]> # <Arrow [2018-05-05T13:30:00+00:00]> # <Arrow [2018-05-05T14:30:00+00:00]> # <Arrow [2018-05-05T15:30:00+00:00]> # <Arrow [2018-05-05T16:30:00+00:00]>

修改时间

　　replace(**kwargs) 替换某个时间区域

atim = arrow.utcnow() print(atim) # 2018-03-08T15:42:30.435938+00:00 print(atim.replace(year=2012,month=6)) # 2012-06-08T15:42:30.435938+00:00

　　shift(**kwargs) 移动时间

print(atim.shift(years=10,months=-2)) # 2028-01-08T15:43:57.632305+00:00

格式化参数

Year YYYY 　　2000, 2001, 2002 ... 2012, 2013 YY 00, 01, 02 ... 12, 13 Month MMMM 　 January, February, March ... [1] MMM Jan, Feb, Mar ... [1] MM 01, 02, 03 ... 11, 12 M 1, 2, 3 ... 11, 12 Day of Year DDDD 001, 002, 003 ... 364, 365 DDD 1, 2, 3 ... 4, 5 Day of Month DD 01, 02, 03 ... 30, 31 D 1, 2, 3 ... 30, 31 Do 1st, 2nd, 3rd ... 30th, 31st Day of Week dddd Monday, Tuesday, Wednesday ... [2] ddd Mon, Tue, Wed ... [2] d 1, 2, 3 ... 6, 7 Hour HH 00, 01, 02 ... 23, 24 H 0, 1, 2 ... 23, 24 hh 01, 02, 03 ... 11, 12 h 1, 2, 3 ... 11, 12 AM / PM A AM, PM, am, pm [1] a am, pm [1] Minute mm 00, 01, 02 ... 58, 59 m 0, 1, 2 ... 58, 59 Second ss 00, 01, 02 ... 58, 59 s 0, 1, 2 ... 58, 59 Sub-second S... 0, 02, 003, 000006, 123123123123... [3] Timezone ZZZ Asia/Baku, Europe/Warsaw, GMT ... [4] ZZ -07:00, -06:00 ... +06:00, +07:00 Z -0700, -0600 ... +0600, +0700 Timestamp X 1381685817

 

转载于:https://www.cnblogs.com/xiaopi-python/p/8531630.html

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