{
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        "author": "python273",
        "author_email": "whoami@python273.pw",
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        "classifiers": [
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "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 :: Implementation :: CPython",
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        "description": "precursion [![PyPI](https://img.shields.io/pypi/v/precursion.svg)](https://pypi.org/project/precursion/) ![Python 2.7, 3.4, 3.5, 3.6](https://img.shields.io/pypi/pyversions/precursion.svg)\n======\n**precursion** \u2013 Python module to avoid `RecursionError: maximum recursion depth exceeded` easily\n\n## Usage\n\nOk, let's write recursive function:\n```python\ndef sumrange(x):\n    if x == 0:\n        return 0\n\n    r = sumrange(x - 1)\n    return x + r\n\nprint(sumrange(10)  # 55\n```\nPretty simple. But what if we call it with bigger argument\n```python\nprint(sumrange(1000))\n# RecursionError: maximum recursion depth exceeded\n```\nLet's fix it with precursion module:\n```python\n@precurse\ndef sumrange(x):\n    if x == 0:\n        # return was:\n        # return 0\n        # now we need to use StopIteration exception:\n        raise StopIteration(0)\n\n    # recursive call was:\n    # r = sumrange(x - 1)\n    # now we use yield:\n    r = yield sumrange.r(x - 1)\n    raise StopIteration(x + r)\n\nprint(sumrange(1000))  # 500500!!1\n```\nThat's it!\n\n#### What is `.r` in `sumrange.r`?\n\nIt's unwrapped function, so you `yield` unwrapped generator\n\n## Pros and cons:\n\n#### Pros\nThe code looks cleaner. Yep.\n\n#### Cons\nFunction calls have performance and memory overhead, so using\nthe decorator is slower than if you use Tail-call optimization via `while`\nor implement a stack inside a function.",
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        "summary": "No more `RecursionError: maximum recursion depth exceeded`",
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