使用Sphinx autodoc记录Python协同程序

时间:2016-04-04 13:11:08

标签: python-sphinx python-asyncio

我开始用Sphinx记录我的第一个基于asyncio的项目。我注意到一些项目在某些方法之前有这个“ coroutine ”前缀,我想在我的项目文档中做同样的事情,但我无法弄清楚如何。

例如,aiohttp's HTTP client reference显示了这一点:

  

class aiohttp.ClientSession(...):

     

coroutine request(...)

该项目似乎使用coroutinemethod指令来实现此目的,但是我使用docstrings将所有函数和类内联到文档中,只有在reStructuredText文档中编写文档时,此指令才有效。

有人知道如何使用autodoc实现此结果吗?

编辑:如果Sphinx不支持,我也会接受解释如何使Sphinx扩展执行此操作的答案。如果某人可以使用inspect.iscoroutinefunction()自动检测该方法是否是协程,那么奖励积分。

编辑:我正在查看CPython项目中的"pyspecific" Sphinx extension以获取灵感。但是,我需要更改autodoc的行为,而不是添加新的指令。经过一些研究后,看起来autodoc有autodoc-process-signature event可用于自定义函数签名,但它似乎没有“pyspecific”扩展使用的对象。

1 个答案:

答案 0 :(得分:3)

此功能尚未内置于Sphinx。但是,pull request #1826在autodoc的autofunctionautomethod指令中增加了对生成器,协同程序函数,协同程序方法的支持以及协同程序的内置检测。

以下是我在本地应用的补丁,以便在Sphinx 1.4中启用此功能(需要停用sphinx-build&#39; s -W&#34;将警告转为错误&#34;选项):< / p>

# Recipe stolen from open PR (https://github.com/sphinx-doc/sphinx/pull/1826).


from inspect import iscoroutinefunction

from sphinx import addnodes
from sphinx.domains.python import (
    PyClassmember,
    PyModulelevel,
)
from sphinx.ext.autodoc import FunctionDocumenter as _FunctionDocumenter
from sphinx.ext.autodoc import MethodDocumenter as _MethodDocumenter


class PyCoroutineMixin(object):
    """Helper for coroutine-related Sphinx custom directives."""

    def handle_signature(self, sig, signode):
        ret = super(PyCoroutineMixin, self).handle_signature(sig, signode)
        signode.insert(0, addnodes.desc_annotation('coroutine ', 'coroutine '))
        return ret


class PyCoroutineFunction(PyCoroutineMixin, PyModulelevel):
    """Sphinx directive for coroutine functions."""

    def run(self):
        self.name = 'py:function'
        return PyModulelevel.run(self)


class PyCoroutineMethod(PyCoroutineMixin, PyClassmember):
    """Sphinx directive for coroutine methods."""

    def run(self):
        self.name = 'py:method'
        return PyClassmember.run(self)


class FunctionDocumenter(_FunctionDocumenter):
    """Automatically detect coroutine functions."""

    def import_object(self):
        ret = _FunctionDocumenter.import_object(self)
        if not ret:
            return ret

        obj = self.parent.__dict__.get(self.object_name)
        if iscoroutinefunction(obj):
            self.directivetype = 'coroutine'
            self.member_order = _FunctionDocumenter.member_order + 2
        return ret


class MethodDocumenter(_MethodDocumenter):
    """Automatically detect coroutine methods."""

    def import_object(self):
        ret = _MethodDocumenter.import_object(self)
        if not ret:
            return ret

        obj = self.parent.__dict__.get(self.object_name)
        if iscoroutinefunction(obj):
            self.directivetype = 'coroutinemethod'
            self.member_order = _MethodDocumenter.member_order + 2
        return ret


def setup(app):
    """Sphinx extension entry point."""

    # Add new directives.
    app.add_directive_to_domain('py', 'coroutine', PyCoroutineFunction)
    app.add_directive_to_domain('py', 'coroutinemethod', PyCoroutineMethod)

    # Customize annotations for anything that looks like a coroutine.
    app.add_autodocumenter(FunctionDocumenter)
    app.add_autodocumenter(MethodDocumenter)

    # Return extension meta data.
    return {
        'version': '1.0',
        'parallel_read_safe': True,
    }
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