mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
synced 2025-01-01 10:46:42 +00:00
37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
# Copyright (c) 2001 Autonomous Zone Industries
|
|
# Copyright (c) 2002-2007 Bryce "Zooko" Wilcox-O'Hearn
|
|
# This file is licensed under the
|
|
# GNU Lesser General Public License v2.1.
|
|
# See the file COPYING or visit http://www.gnu.org/ for details.
|
|
|
|
# ISO-8601:
|
|
# http://www.cl.cam.ac.uk/~mgk25/iso-time.html
|
|
|
|
import datetime, re, time
|
|
|
|
def iso_utc(now=None, sep='_', t=time.time):
|
|
if now is None:
|
|
now = t()
|
|
return datetime.datetime.utcfromtimestamp(now).isoformat(sep)
|
|
|
|
def iso_utc_time_to_localseconds(isotime, _conversion_re=re.compile(r"(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2})[T_ ](?P<hour>\d{2}):(?P<minute>\d{2}):(?P<second>\d{2})(?P<subsecond>\.\d+)?")):
|
|
"""
|
|
The inverse of iso_utc().
|
|
|
|
Real ISO-8601 is "2003-01-08T06:30:59". We also accept the widely
|
|
used variants "2003-01-08_06:30:59" and "2003-01-08 06:30:59".
|
|
"""
|
|
m = _conversion_re.match(isotime)
|
|
if not m:
|
|
raise ValueError, (isotime, "not a complete ISO8601 timestamp")
|
|
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
|
|
hour, minute, second = int(m.group('hour')), int(m.group('minute')), int(m.group('second'))
|
|
utcseconds = time.mktime( (year, month, day, hour, minute, second, 0, 1, 0) )
|
|
localseconds = utcseconds - time.timezone
|
|
subsecstr = m.group('subsecond')
|
|
if subsecstr:
|
|
subsecfloat = float(subsecstr)
|
|
localseconds += subsecfloat
|
|
return localseconds
|
|
|