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    "info": {
        "author": "Kyle Altendorf",
        "author_email": "",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 4 - Beta",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 2",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3",
            "Programming Language :: Python :: 3.4",
            "Programming Language :: Python :: 3.5",
            "Programming Language :: Python :: 3.6",
            "Programming Language :: Python :: 3.7"
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        "description": "exttr\n=====\n\n|PyPI| |Pythons| |Travis| |GitHub|\n\nIntegrating extra metadata into attr.ib()\n\n.. |PyPI| image:: https://img.shields.io/pypi/v/exttr.svg\n   :alt: PyPI version\n   :target: https://pypi.org/project/exttr/\n\n.. |Pythons| image:: https://img.shields.io/pypi/pyversions/exttr.svg\n   :alt: supported Python versions\n   :target: https://pypi.org/project/exttr/\n\n.. |Travis| image:: https://travis-ci.org/altendky/exttr.svg?branch=master\n   :alt: Travis build status\n   :target: https://travis-ci.org/altendky/exttr\n\n.. |GitHub| image:: https://img.shields.io/github/last-commit/altendky/exttr/master.svg\n   :alt: source on GitHub\n   :target: https://github.com/altendky/exttr\n\n\nExample\n-------\n\nWith a little luck a better example will be provided later but for now, here's something.\n\nA dev in ``#python`` was interested in having click_ build them attrs_-defined configuration objects.\nHere's a basic solution for that with the click options being defined on the attrs class attributes via a custom exttr keyword argument ``click=``.\n\n.. _attrs: https://github.com/python-attrs/attrs\n.. _click: https://github.com/pallets/click\n\n.. code-block:: python\n\n    import collections\n    import sys\n\n    import attr\n    import click\n    import exttr\n\n\n    exttr.register_keywords(\n        exttr.Keyword(name='click'),\n    )\n\n\n    @attr.s\n    class Configuration:\n        foo = exttr.ib(click=click.option('--red'))\n\n\n    def main(configuration):\n        print(configuration)\n\n    def clicked_fields(cls):\n        fields = collections.OrderedDict()\n\n        for field in attr.fields(cls):\n            decorator = exttr.get(cls, field.name, 'click')\n\n            if decorator is None:\n                continue\n\n            fields[field.name] = decorator\n\n        return fields\n\n\n    def build_click(f, cls, command_or_group):\n        fields = clicked_fields(cls)\n\n        def cli(*args, **kwargs):\n            configuration = cls(*args, **kwargs)\n\n            return f(configuration)\n\n        for name, decorator in reversed(fields.items()):\n            before = getattr(cli, '__click_params__', [])\n\n            cli = decorator(cli)\n\n            after = getattr(cli, '__click_params__', [])\n            new = after[len(before):]\n\n            if len(new) == 1:\n                new, = new\n                new.name = name\n\n        return command_or_group(cli)\n\n\n    click_main = build_click(\n        f=main,\n        cls=Configuration,\n        command_or_group=click.command(),\n    )\n\n\n    sys.argv[1:] = ['--red', 'burgundy']\n    try:\n        click_main()\n    except SystemExit:\n        pass\n\nOutput:\n\n.. code-block:: python\n\n    Configuration(foo='burgundy')\n\n\n",
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        "keywords": "",
        "license": "MIT",
        "maintainer": "",
        "maintainer_email": "",
        "name": "exttr",
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        "summary": "Integrating extra metadata into attr.ib()",
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