import os,sys import time import datetime leapMonthDays = [0,31,29,31,30,31,30,31,31,30,31,30,31] unleapMonthDays = [0,31,28,31,30,31,30,31,31,30,31,30,31] def curDatetime(): return datetime.datetime.now() def curDateString(): d = curDatetime() return '%04d-%02d-%02d' %(d.year,d.month,d.day) def curTimeString(): d = curDatetime() return '%02d:%02d:%02d' %(d.hour,d.minute,d.second) def timestampstr(): d = curDatetime() return '%04d-%02d-%02d %02d:%02d:%02d.%03d' % (d.year, d.month, d.day, d.hour, d.minute, d.second, d.microsecond/1000) def isMonthLastDay(d): dd = datetime.timedelta(1) d1 = d + dd if d1.month != d.month: return True return False def isLeapYear(year): if year % 4 == 0 and year % 100 == 0 and not (year % 400 == 0): return True return False def timestamp(dt): return int(time.mktime((dt.year,dt.month,dt.day,dt.hour,dt.minute,dt.second,dt.microsecond,0,0))) def timeStampSecond(dt): return int(time.mktime((dt.year,dt.month,dt.day,dt.hour,dt.minute,dt.second,0,0,0))) def addSeconds(dt,s): ndt = dt + datetime.timedelta(0,s) return ndt def monthMaxDay(y,m): if isLeapYear(y): return leapMonthDays[m] return unleapMonthDays[m] def date2str(dt=None): if dt is None: dt = curDatetime() return '%04d-%02d-%02d' % (dt.year,dt.month,dt.day) def time2str(dt): return '%02d:%02d:%02d' % (dt.hour,dt,minute,dt.second) def str2Date(dstr): try: haha = dstr.split(' ') y,m,d = haha[0].split('-') H = M = S = 0 if len(haha) > 1: H,M,S = haha[1].split(':') return ymdDate(int(y),int(m),int(d),int(H),int(M),int(S)) except Exception as e: print(e) return None def ymdDate(y,m,d,H=0,M=0,S=0): return datetime.datetime(y,m,d,H,M,S) def str2Datetime(dstr): x = dstr.split(' ') d = x[0] t = '00:00:00' if len(x) > 1: t = x[1] y,m,d = d.split('-') H,M,S = t.split(':') return datetime.datetime(int(y),int(m),int(d),int(H),int(M),int(S)) def strdate_add(date_str, days=0, months=0, years=0): dt = str2Datetime(date_str) dt = dateAdd(dt, days=days, months=months, years=years) ds = date2str(dt) return ds def addMonths(dt,months): y = dt.year m = dt.month + months d = dt.day mm = (m - 1) % 12 + 1 md = int((m - 1) / 12) y += md m = mm maxd = monthMaxDay(y,m) if d > maxd: d = maxd return ymdDate(y,m,d) def addYears(dt,years): y = dt.year + years m = dt.month d = dt.day maxd = monthMaxDay(y,m) if d > maxd: d = maxd return ymdDate(y,m,d) def dateAdd(dt,days=0,months=0,years=0): if days != 0: dd = datetime.timedelta(days) dt = dt + dd if months != 0: dt = addMonths(dt,months) if years != 0: dt = addYears(dt,years) return dt def firstSunday(dt): f = dt.weekday() if f<6: return dt + datetime.timedelta(7 - f) return dt DTFORMAT = '%Y%m%d %H%M%S' def getCurrentTimeStamp() : t = time.localtime() return TimeStamp(t) def TimeStamp(t) : return time.strftime(DTFORMAT,t) def StepedTimestamp(baseTs,ts,step) : if step<2 : return ts offs = int(timestampSub(ts,baseTs)) step = int(step) r,m = divmod(offs,step) if m < step/2 : return timestampAdd(baseTs,step * r) else : return timestampAdd(baseTs,step * (r+1)) def timestampAdd(ts1,ts2) : t1 = time.strptime(ts1,DTFORMAT) tf = time.mktime(t1) if type(ts2)=='' : t2 = time.strptime(ts2,DTFORMAT) ts2 = time.mktime(t2) tf += ts2 t = time.localtime(tf) return TimeStamp(t) def timestampSub(ts1,ts2) : t1 = time.strptime(ts1,DTFORMAT) t2 = time.strptime(ts2,DTFORMAT) ret = time.mktime(t1) - time.mktime(t2) return int(ret) def timestamp2dt(t): return datetime.datetime.fromtimestamp(t) def date_weekinyear(date_str): w = datetime.datetime.strptime(date_str, '%Y-%m-%d').strftime('%W') return date_str[:5] + w def date_season(date_str): m = date_str[5:7] sl = { '01':'1', '02':'1', '03':'1', '04':'2', '05':'2', '06':'2', '07':'3', '08':'3', '09':'3', '10':'4', '11':'4', '12':'4', } s = sl.get(m) return date_str[:5] + s