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Date parsing library designed to parse dates from HTML pages

Project description

====================================================
dateparser -- python parser for human readable dates
====================================================

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`dateparser` provides modules to easily parse localized dates in almost
any string formats commonly found on web pages.


Documentation
=============

Documentation can be found `here <https://dateparser.readthedocs.org/en/latest/>`_.


Features
========

* Generic parsing of dates in English, Spanish, Dutch, Russian and several other languages and formats.
* Generic parsing of relative dates like: ``'1 min ago'``, ``'2 weeks ago'``, ``'3 months, 1 week and 1 day ago'``.
* Generic parsing of dates with time zones abbreviations or UTC offsets like: ``'August 14, 2015 EST'``, ``'July 4, 2013 PST'``, ``'21 July 2013 10:15 pm +0500'``.
* Support for non-Gregorian calendar systems with the first addition of :class:`JalaliParser <dateparser.calendars.jalali.JalaliParser>`. See `Persian Jalali Calendar <https://en.wikipedia.org/wiki/Iranian_calendars#Zoroastrian_calendar>`_ for more information.
* Extensive test coverage.


Usage
=====

The most straightforward way is to use the `dateparser.parse <#dateparser.parse>`_ function,
that wraps around most of the functionality in the module.





Popular Formats
---------------

>>> import dateparser
>>> dateparser.parse('12/12/12')
datetime.datetime(2012, 12, 12, 0, 0)
>>> dateparser.parse(u'Fri, 12 Dec 2014 10:55:50')
datetime.datetime(2014, 12, 12, 10, 55, 50)
>>> dateparser.parse(u'Martes 21 de Octubre de 2014') # Spanish (Tuesday 21 October 2014)
datetime.datetime(2014, 10, 21, 0, 0)
>>> dateparser.parse(u'Le 11 Décembre 2014 à 09:00') # French (11 December 2014 at 09:00)
datetime.datetime(2014, 12, 11, 9, 0)
>>> dateparser.parse(u'13 января 2015 г. в 13:34') # Russian (13 January 2015 at 13:34)
datetime.datetime(2015, 1, 13, 13, 34)
>>> dateparser.parse(u'1 เดือนตุลาคม 2005, 1:00 AM') # Thai (1 October 2005, 1:00 AM)
datetime.datetime(2005, 10, 1, 1, 0)

This will try to parse a date from the given string, attempting to
detect the language each time.

You can specify the language(s), if known, using ``languages`` argument. In this case, given languages are used and language detection is skipped::

>>> dateparser.parse('2015, Ago 15, 1:08 pm', languages=['pt', 'es'])
datetime.datetime(2015, 8, 15, 13, 8)

If you know the possible formats of the dates, you can
use the ``date_formats`` argument::

>>> dateparser.parse(u'22 Décembre 2010', date_formats=['%d %B %Y'])
datetime.datetime(2010, 12, 22, 0, 0)


Relative Dates
--------------

>>> parse('1 hour ago')
datetime.datetime(2015, 5, 31, 23, 0)
>>> parse(u'Il ya 2 heures') # French (2 hours ago)
datetime.datetime(2015, 5, 31, 22, 0)
>>> parse(u'1 anno 2 mesi') # Italian (1 year 2 months)
datetime.datetime(2014, 4, 1, 0, 0)
>>> parse(u'yaklaşık 23 saat önce') # Turkish (23 hours ago)
datetime.datetime(2015, 5, 31, 1, 0)
>>> parse(u'Hace una semana') # Spanish (a week ago)
datetime.datetime(2015, 5, 25, 0, 0)
>>> parse(u'2小时前') # Chinese (2 hours ago)
datetime.datetime(2015, 5, 31, 22, 0)

.. note:: Testing above code might return different values for you depending on your environment's current date and time.


Dependencies
============

`dateparser` translates non-English dates to English and uses dateutil_ module ``parser`` to parse the translated date.

Also, it requires PyYAML_ for its language detection module to work. The module jdatetime_ is used for handling Jalali calendar.

.. _dateutil: https://pypi.python.org/pypi/python-dateutil
.. _PyYAML: https://pypi.python.org/pypi/PyYAML
.. _jdatetime: https://pypi.python.org/pypi/jdatetime


Supported languages
===================

* Arabic
* Belarusian
* Chinese
* Czech
* Dutch
* English
* Filipino
* French
* German
* Indonesian
* Italian
* Persian
* Polish
* Portuguese
* Romanian
* Russian
* Spanish
* Thai
* Turkish
* Ukrainian
* Vietnamese

Supported Calendars
===================
* Gregorian calendar

* Persian Jalali calendar

Example of Use for Jalali Calendar
==================================

>>> from dateparser.calendars.jalali import JalaliParser
>>> JalaliParser(u'جمعه سی ام اسفند ۱۳۸۷').get_date()
datetime.datetime(2009, 3, 20, 0, 0)


.. :changelog:

History
=======

0.3.1 (2015-10-28)
------------------
New features:

* Support for Jalali Calendar.
* Belarusian language support.
* Indonesian language support.


Improvements:

* Extended support for Russian and Polish.
* Fixed bug with time zone recognition.
* Fixed bug with incorrect translation of "second" for Portuguese.


0.3.0 (2015-07-29)
------------------
New features:

* Compatibility with Python 3 and PyPy.

Improvements:

* `languages.yaml` data cleaned up to make it human-readable.
* Improved Spanish date parsing.


0.2.1 (2015-07-13)
------------------
* Support for generic parsing of dates with UTC offset.
* Support for Filipino dates.
* Improved support for French and Spanish dates.


0.2.0 (2015-06-17)
------------------
* Easy to use `parse` function
* Languages definitions using YAML.
* Using translation based approach for parsing non-english languages. Previously, `dateutil.parserinfo` was used for language definitions.
* Better period extraction.
* Improved tests.
* Added a number of new simplifications for more comprehensive generic parsing.
* Improved validation for dates.
* Support for Polish, Thai and Arabic dates.
* Support for `pytz` timezones.
* Fixed building and packaging issues.


0.1.0 (2014-11-24)
------------------

* First release on PyPI.

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