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Calculations for solar time such as dawn, sunrise, sunset, dusk.

Project description

This is ‘solartime’, a Python module which calculates times for various positions of the sun: dawn, sunrise, solar noon, sunset, and dusk.

‘solartime’ is a vastly-simplified fork of Simon Kennedy’s ‘astral’ module, and is Free / Libre Open Source software under the Apache 2.0 license.

Its only dependency is the pytz package, and Python 2.6, 2.7, 3.3+.

Example usage:

>>> from datetime import date
>>> from pytz import timezone
>>> from solartime import SolarTime
>>>
>>> today = date(2014, 4, 20)
>>> localtz = timezone('US/Eastern')
>>> lat, lon = 38.0, -79.0
>>>
>>> sun = SolarTime()
>>> schedule = sun.sun_utc(today, lat, lon)
>>> sunset = schedule['sunset'].astimezone(localtz)
>>> print sunset
2014-04-20 19:56:38-04:00

License

Copyright 2015 David A. Riggs <driggs@myotisoft.com> Copyright 2009-2014 Simon Kennedy <sffjunkie+code@gmail.com>

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.

Project details


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