-# 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
+import calendar, datetime, re, time
+
+def iso_utc_date(now=None, t=time.time):
+ if now is None:
+ now = t()
+ return datetime.datetime.utcfromtimestamp(now).isoformat()[:10]
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+)?")):
+def iso_local(now=None, sep='_', t=time.time):
+ if now is None:
+ now = t()
+ return datetime.datetime.fromtimestamp(now).isoformat(sep)
+
+def iso_utc_time_to_seconds(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().
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
+ else:
+ subsecfloat = 0
+
+ return calendar.timegm( (year, month, day, hour, minute, second, 0, 1, 0) ) + subsecfloat
+
+def parse_duration(s):
+ orig = s
+ unit = None
+ DAY = 24*60*60
+ MONTH = 31*DAY
+ YEAR = 365*DAY
+ if s.endswith("s"):
+ s = s[:-1]
+ if s.endswith("day"):
+ unit = DAY
+ s = s[:-len("day")]
+ elif s.endswith("month"):
+ unit = MONTH
+ s = s[:-len("month")]
+ elif s.endswith("mo"):
+ unit = MONTH
+ s = s[:-len("mo")]
+ elif s.endswith("year"):
+ unit = YEAR
+ s = s[:-len("YEAR")]
+ else:
+ raise ValueError("no unit (like day, month, or year) in '%s'" % orig)
+ s = s.strip()
+ return int(s) * unit
+
+def parse_date(s):
+ # return seconds-since-epoch for the UTC midnight that starts the given
+ # day
+ return int(iso_utc_time_to_seconds(s + "T00:00:00"))
+def format_delta(time_1, time_2):
+ TIME_FORMAT = "%H:%M:%S %d-%b-%Y"
+ if time_1 is None:
+ absolute_str, relative_str = "N/A", "N/A"
+ else:
+ delta = int( time_2 - time_1 )
+ seconds = delta % 60
+ delta -= seconds
+ minutes = (delta / 60) % 60
+ delta -= minutes * 60
+ hours = delta / (60*60) % 24
+ delta -= hours * 24
+ days = delta / (24*60*60)
+ if not days:
+ if not hours:
+ if not minutes:
+ relative_str = "%ss" % (seconds)
+ else:
+ relative_str = "%sm%ss" % (minutes, seconds)
+ else:
+ relative_str = "%sh%sm%ss" % (hours, minutes, seconds)
+ else:
+ relative_str = "%sd%sh%sm%ss" % (days, hours, minutes, seconds)
+ absolute_str = time.strftime(TIME_FORMAT, time.localtime(time_1))
+ return absolute_str, relative_str