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        "author": "Luke Granger-Brown & Alessandro Molina",
        "author_email": "python@lukegb.com",
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        "classifiers": [
            "Development Status :: 3 - Alpha",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: JavaScript",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.3",
            "Programming Language :: Python :: 3.4",
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        "description": "dukpy\n=====\n\n.. image:: https://travis-ci.org/lukegb/dukpy.png?branch=master \n    :target: https://travis-ci.org/lukegb/dukpy \n\n.. image:: https://coveralls.io/repos/lukegb/dukpy/badge.png?branch=master\n    :target: https://coveralls.io/r/lukegb/dukpy?branch=master \n\nDukPy is a simple javascript interpreter for Python built on top of\nduktape engine **without any external dependency**.\nIt comes with a bunch of common transpilers built-in for convenience:\n\n    - *CoffeeScript*\n    - *BabelJS*\n    - *TypeScript*\n\nDukpy has been tested on **Python 3.4**, dukpy\nis currently not production ready and might actually crash your\nprogram as it is mostly implemented in C.\n\ndukpy-lukegb is a fork of Alessandro Molina's dukpy: https://github.com/amol-/dukpy\n\nCoffeeScript Compiler\n---------------------\n\nUsing the coffeescript compiler is as easy as running::\n\n    >>> import dukpy\n    >>> dukpy.coffee_compile('''\n    ...     fill = (container, liquid = \"coffee\") ->\n    ...         \"Filling the #{container} with #{liquid}...\"\n    ... ''')\n    '(function() {\\n  var fill;\\n\\n  fill = function*(container, liquid) {\\n    if (liquid == null) {\\n      liquid = \"coffee\";\\n    }\\n    return \"Filling the \" + container + \" with \" + liquid + \"...\";\\n  };\\n\\n}).call(this);\\n'\n\nTypeScript Transpiler\n---------------------\n\nThe TypeScript compiler can be used through the ``dukpy.typescript_compile`` function::\n\n    >>> import dukpy\n    >>> dukpy.typescript_compile('''\n    ... class Greeter {\n    ...     constructor(public greeting: string) { }\n    ...     greet() {\n    ...         return \"<h1>\" + this.greeting + \"</h1>\";\n    ...     }\n    ... };\n    ...\n    ... var greeter = new Greeter(\"Hello, world!\");\n    ... ''')\n    'var Greeter = (function () {\\n    function Greeter(greeting) {\\n        this.greeting = greeting;\\n    }\\n    Greeter.prototype.greet = function () {\\n        return \"<h1>\" + this.greeting + \"</h1>\";\\n    };\\n    return Greeter;\\n})();\\n;\\nvar greeter = new Greeter(\"Hello, world!\");\\n'\n\nCurrently the compiler has built-in options and doesn't accept additional ones,\n\n\nEcmaScript6 BabelJS Transpiler\n------------------------------\n\nTo compile ES6 code to ES5 for everyday usage you can use ``dukpy.babel_compile``::\n\n    >>> import dukpy\n    >>> dukpy.babel_compile('''\n    ... class Point {\n    ...     constructor(x, y) {\n    ...             this.x = x;\n    ...         this.y = y;\n    ...         }\n    ...         toString() {\n    ...             return '(' + this.x + ', ' + this.y + ')';\n    ...         }\n    ... }\n    ... ''')\n    '\"use strict\";\\n\\nvar _prototypeProperties = function (child, staticProps, instanceProps) { if (staticProps) Object.defineProperties(child, staticProps); if (instanceProps) Object.defineProperties(child.prototype, instanceProps); };\\n\\nvar _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } };\\n\\nvar Point = (function () {\\n    function Point(x, y) {\\n        _classCallCheck(this, Point);\\n\\n        this.x = x;\\n        this.y = y;\\n    }\\n\\n    _prototypeProperties(Point, null, {\\n        toString: {\\n            value: function toString() {\\n                return \"(\" + this.x + \", \" + this.y + \")\";\\n            },\\n            writable: true,\\n            configurable: true\\n        }\\n    });\\n\\n    return Point;\\n})();\\n'\n\nThe DukPY based BabelJS compiler also provides a WebAssets ( http://webassets.readthedocs.org/en/latest/ ) filter to automatically compile ES6 code in your assets pipeline.\nYou register this filter as ``babeljs`` within WebAssets using::\n\n    from webassets.filter import register_filter\n    from dukpy.webassets import BabelJS\n    \n    register_filter(BabelJS)\n\nWhich makes the filter available with the ``babeljs`` name.\n\n**NOTE:** When using the BabelJS compiler for code that needs to run in the browser, make sure to add https://cdnjs.cloudflare.com/ajax/libs/babel-core/4.6.6/browser-polyfill.js dependency.\n\nUsing the JavaScript Interpreter\n--------------------------------\n\nUsing dukpy is as simple as calling the ``dukpy.evaljs`` function with\nthe javascript code::\n\n    >>> import dukpy\n    >>> dukpy.evaljs(\"var o = {'value': 5}; o['value'] += 3; o\")\n    {'value': 8}\n\n\nThe ``evaljs`` function executes the javascript and returns the\nresulting value as far as it is possible to encode it in JSON.\n\nIf execution fails a ``dukpy.JSRuntimeError`` exception is raised\nwith the failure reason.\n\nPassing Arguments\n-----------------\n\nAny argument passed to ``evaljs`` is available in JavaScript inside\nthe ``dukpy`` object in javascript. It must be possible to encode\nthe arguments using JSON for them to be available in Javascript::\n\n    >>> import dukpy\n    >>>\n    >>> def sum3(value):\n    ...     return dukpy.evaljs(\"dukpy['value'] + 3\", value=value)\n    ...\n    >>> sum3(7)\n    10\n\nRunning Multiple Scripts\n------------------------\n\nThe ``evaljs`` function supports providing multiple source codes to\nbe executed in the same context.\n\nMultiple script can be passed in a list or tuple::\n\n    >>> import dukpy\n    >>> dukpy.evaljs([\"var o = {'value': 5}\",\n    ...               \"o['value'] += 3\",\n    ...               \"o\"])\n    {'value': 8}\n\nThis is useful when your code requires dependencies to work,\nas you can load the dependency and then your code.\n\nThis is actually how the coffeescript compiler is implemented\nby DukPy itself::\n\n    def coffee_compile(source):\n        with open(COFFEE_COMPILER, 'r') as coffeescript_js:\n            return evaljs((coffeescript_js.read(), 'CoffeeScript.compile(dukpy.coffeecode)'),\n                          coffeecode=source)",
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