/usr/lib/python2.7/dist-packages/horizon/templatetags/parse_date.py is in python-django-horizon 1:2014.1.5-0ubuntu2.1.
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# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, Inc.
#
# 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
#
# 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
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Template tags for parsing date strings.
"""
from datetime import datetime # noqa
from django import template
from django.utils import timezone
register = template.Library()
class ParseDateNode(template.Node):
def render(self, datestring):
"""Parses a date-like input string into a timezone aware Python
datetime.
"""
formats = ["%Y-%m-%dT%H:%M:%S.%f", "%Y-%m-%d %H:%M:%S.%f",
"%Y-%m-%dT%H:%M:%S", "%Y-%m-%d %H:%M:%S"]
if datestring:
for format in formats:
try:
parsed = datetime.strptime(datestring, format)
if not timezone.is_aware(parsed):
parsed = timezone.make_aware(parsed, timezone.utc)
return parsed
except Exception:
pass
return None
@register.filter(name='parse_date')
def parse_date(value):
return ParseDateNode().render(value)
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