| 1 |
817
|
aaronmk
|
# Date/time manipulation
|
| 2 |
|
|
|
| 3 |
|
|
import datetime
|
| 4 |
1040
|
aaronmk
|
import dateutil.tz
|
| 5 |
817
|
aaronmk
|
import time
|
| 6 |
|
|
|
| 7 |
1040
|
aaronmk
|
utc = dateutil.tz.tzutc()
|
| 8 |
|
|
local = dateutil.tz.tzlocal()
|
| 9 |
817
|
aaronmk
|
|
| 10 |
1040
|
aaronmk
|
def naive2utc(datetime_):
|
| 11 |
|
|
assert datetime_.tzinfo == None
|
| 12 |
|
|
return datetime_.replace(tzinfo=utc)
|
| 13 |
817
|
aaronmk
|
|
| 14 |
1040
|
aaronmk
|
def aware2local(datetime_): return datetime_.astimezone(local)
|
| 15 |
|
|
|
| 16 |
|
|
def from_timestamp(utc_timestamp):
|
| 17 |
|
|
return naive2utc(datetime.datetime.utcfromtimestamp(utc_timestamp))
|
| 18 |
|
|
|
| 19 |
1041
|
aaronmk
|
def timestamp(datetime_):
|
| 20 |
|
|
datetime_ = aware2local(datetime_)
|
| 21 |
|
|
return int(time.mktime(datetime_.timetuple())) + datetime_.microsecond/1e6
|
| 22 |
1040
|
aaronmk
|
|
| 23 |
|
|
epoch = from_timestamp(0)
|
| 24 |
|
|
|
| 25 |
|
|
def now(): return datetime.datetime.now(utc)
|
| 26 |
|
|
|
| 27 |
817
|
aaronmk
|
def strftime(format, datetime_):
|
| 28 |
|
|
'''datetime.strftime() can't handle years before 1900'''
|
| 29 |
1040
|
aaronmk
|
return (datetime_.replace(year=epoch.year, day=1).strftime(format
|
| 30 |
845
|
aaronmk
|
.replace('%Y', '%%Y')
|
| 31 |
|
|
.replace('%d', '%%d')
|
| 32 |
|
|
)
|
| 33 |
|
|
.replace('%Y', '%04d' % datetime_.year)
|
| 34 |
|
|
.replace('%d', '%02d' % datetime_.day)
|
| 35 |
|
|
)
|
| 36 |
1040
|
aaronmk
|
|
| 37 |
|
|
def total_seconds(timedelta_): return timestamp(epoch + timedelta_)
|
