Source code for glance.common.timeutils

# Copyright 2011 OpenStack Foundation.
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#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
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#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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"""
Time related utilities and helper functions.
"""

from oslo_utils import timeutils

# ISO 8601 extended time format with microseconds
_ISO8601_TIME_FORMAT_SUBSECOND = '%Y-%m-%dT%H:%M:%S.%f'
_ISO8601_TIME_FORMAT = '%Y-%m-%dT%H:%M:%S'
PERFECT_TIME_FORMAT = _ISO8601_TIME_FORMAT_SUBSECOND


[docs] def isotime(at=None, subsecond=False): """Stringify time in ISO 8601 format.""" if not at: at = timeutils.utcnow() st = at.strftime(_ISO8601_TIME_FORMAT if not subsecond else _ISO8601_TIME_FORMAT_SUBSECOND) tz = at.tzinfo.tzname(None) if at.tzinfo else 'UTC' # Need to handle either iso8601 or python UTC format st += ('Z' if tz in ['UTC', 'UTC+00:00'] else tz) return st