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# Copyright 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is licensed under the terms of the MIT License.
# See LICENSE.txt for details.
from datetime import datetime, timezone
class Timestamp:
@staticmethod
def _new():
return datetime.utcnow()
@staticmethod
def _is_timezone_aware(dt):
return dt.tzinfo is not None and dt.tzinfo.utcoffset(dt) is not None
@staticmethod
def _lose_timezone(dt):
if Timestamp._is_timezone_aware(dt):
return dt.astimezone(timezone.utc).replace(tzinfo=None)
return dt
def __init__(self, dt=None):
if dt is None:
dt = self._new()
dt = dt.replace(microsecond=0)
dt = self._lose_timezone(dt)
self.dt = dt
@staticmethod
def from_string(s):
return Timestamp(datetime.strptime(s, '%Y-%m-%dT%H:%M:%SZ'))
def __str__(self):
return self.dt.isoformat() + 'Z'
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