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        "author": "The PlanetaryPy Developers",
        "author_email": "trevor@heytrevor.com",
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            "Intended Audience :: Developers",
            "License :: OSI Approved :: BSD License",
            "Natural Language :: English",
            "Programming Language :: Python :: 2",
            "Programming Language :: Python :: 2.6",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3",
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        "description": "===============================\npvl\n===============================\n\n.. image:: https://img.shields.io/pypi/v/pvl.svg?style=flat-square\n    :target: https://pypi.python.org/pypi/pvl\n\n.. image:: https://img.shields.io/travis/planetarypy/pvl.svg?style=flat-square\n        :target: https://travis-ci.org/planetarypy/pvl\n\n.. image:: https://img.shields.io/pypi/dm/pvl.svg?style=flat-square\n        :target: https://pypi.python.org/pypi/pvl\n\nPython implementation of PVL (Parameter Value Language)\n\n* Free software: BSD license\n* Documentation: http://pvl.readthedocs.org.\n* Support for Python 2, 3 and pypi.\n* Proudly part of the `PlanetaryPy Toolkit`_\n\nPVL is a markup language, similar to xml, commonly employed for entries in the\nPlanetary Database System used by NASA to store mission data, among other uses.\nThis package supports both encoding a decoding a superset of PVL, including the\n`USGS Isis Cube Label`_ and `NASA PDS 3 Label`_ dialects.\n\n\nInstallation\n------------\n\nCan either install with pip or with conda.\n\nTo install with pip, at the command line::\n\n    $ pip install pvl\n\nDirections for installing with conda-forge:\n\nInstalling pvl from the conda-forge channel can be achieved by adding\nconda-forge to your channels with::\n\n    conda config --add channels conda-forge\n\n\nOnce the conda-forge channel has been enabled, pvl can be installed with::\n\n    conda install pvl\n\nIt is possible to list all of the versions of pvl available on your platform\nwith::\n\n    conda search pvl --channel conda-forge\n\n\nBasic Usage\n-----------\n\npvl exposes an API familiar to users of the standard library json module.\n\nDecoding is primarily done through ``pvl.load`` for file like objects and\n``pvl.loads`` for strings::\n\n    >>> import pvl\n    >>> module = pvl.loads(\"\"\"\n    ...     foo = bar\n    ...     items = (1, 2, 3)\n    ...     END\n    ... \"\"\")\n    >>> print module\n    PVLModule([\n      (u'foo', u'bar')\n      (u'items', [1, 2, 3])\n    ])\n    >>> print module['foo']\n    bar\n\nYou may also use ``pvl.load`` to read a label directly from an image_::\n\n    >>> import pvl\n    >>> label = pvl.load('pattern.cub')\n    >>> print label\n    PVLModule([\n      (u'IsisCube',\n       PVLObject([\n        (u'Core',\n         PVLObject([\n          (u'StartByte', 65537)\n          (u'Format', u'Tile')\n    # output truncated...\n    >>> print label['IsisCube']['Core']['StartByte']\n    65537\n\n\nSimilarly, encoding pvl modules is done through ``pvl.dump`` and ``pvl.dumps``::\n\n    >>> import pvl\n    >>> print pvl.dumps({\n    ...     'foo': 'bar',\n    ...     'items': [1, 2, 3]\n    ... })\n    items = (1, 2, 3)\n    foo = bar\n    END\n\n``PVLModule`` objects may also be pragmatically built up to control the order\nof parameters as well as duplicate keys::\n\n    >>> import pvl\n    >>> module = pvl.PVLModule({'foo': 'bar'})\n    >>> module.append('items', [1, 2, 3])\n    >>> print pvl.dumps(module)\n    foo = bar\n    items = (1, 2, 3)\n    END\n\nA ``PVLModule`` is a ``dict`` like container that preserves ordering as well as\nallows multiple values for the same key. It provides a similar similar semantics\nto a ``list`` of key/value ``tuples`` but with ``dict`` style access::\n\n    >>> import pvl\n    >>> module = pvl.PVLModule([\n    ...     ('foo', 'bar'),\n    ...     ('items', [1, 2, 3]),\n    ...     ('foo', 'remember me?'),\n    ... ])\n    >>> print module['foo']\n    bar\n    >>> print module.getlist('foo')\n    ['bar', 'remember me?']\n    >>> print module.items()\n    [('foo', 'bar'), ('items', [1, 2, 3]), ('foo', u'remember me?')]\n    >>> print pvl.dumps(module)\n    foo = bar\n    items = (1, 2, 3)\n    foo = \"remember me?\"\n    END\n\nFor more information on custom serilization and deseralization see the\n`full documentation`_.\n\n\nContributing\n------------\n\nFeedback, issues, and contributions are always gratefully welcomed. See the\n`contributing guide`_ for details on how to help and setup a development\nenvironment.\n\n\n.. _PlanetaryPy Toolkit: https://github.com/planetarypy\n.. _USGS Isis Cube Label: http://isis.astrogeology.usgs.gov/\n.. _NASA PDS 3 Label: https://pds.nasa.gov\n.. _image: https://github.com/planetarypy/pvl/raw/master/tests/data/pattern.cub\n.. _full documentation: http://pvl.readthedocs.org\n.. _contributing guide: https://github.com/planetarypy/pvl/blob/master/CONTRIBUTING.rst\n\n\n\n\nHistory\n-------\n\n0.3.0 (2017-06-28)\n~~~~~~~~~~~~~~~~~~\n\n* Create methods to add items to the label\n* Give user option to allow the parser to succeed in parsing broken labels\n\n0.2.0 (2015-08-13)\n~~~~~~~~~~~~~~~~~~\n\n* Drastically increase test coverage.\n* Lots of bug fixes.\n* Add Cube and PDS encoders.\n* Cleanup README.\n* Use pvl specification terminology.\n* Added element access by index and slice.\n\n0.1.1 (2015-06-01)\n~~~~~~~~~~~~~~~~~~\n\n* Fixed issue with reading Pancam PDS Products.\n\n0.1.0 (2015-05-30)\n~~~~~~~~~~~~~~~~~~\n\n* First release on PyPI.\n",
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