[python] docstring, 문서화

docstring 작성 포맷

https://stackoverflow.com/questions/3898572/what-is-the-standard-python-docstring-format

google style은 다음과 같은데 타입 적는게 :가 아니라 괄호 안에 들어가서 마음에 안들고, 들여쓰기 때문에 가로축도 많이 차지하고, VSCode에서 힌트 팝업으로 보여줄 때도 bold나 글꼴 크기같은게 안예쁘게 들어간다.

```py

Args:

    path (str): 설명

Returns:

    int: 설명

```

Sphinx와 잘 붙는건 reST 스타일인데, ``py :param v1:``과 ``py :type v1:``을 따로 적어주어야 한다는 점이 마음에 들지 않고 가독성도 썩 좋지 않은 것 같다.

가독성은 Numpydoc 스타일이 괜찮고, 그나마 제일 마음에 드는 스타일.

https://numpydoc.readthedocs.io/en/latest/format.html#docstring-standard

sphinx

http://alifejon.blogspot.com/2016/02/sphinx-python-api.html

스핑크스에 sphinx.ext.napoleon 플러그인을 추가하면 NumPy 스타일의 독스트링을 사용할 수 있음.

1. sphinx-quickstart    # conf.py 및 기본 구조 생성

```

D:\Source\RAPTs\docs

λ sphinx-quickstart.exe

...

```

docs/source/conf.py 설정

```python

#!/usr/bin/env python3

# -*- coding: utf-8 -*-

#

# RAPT documentation build configuration file, created by

# sphinx-quickstart on Fri Oct 19 11:21:57 2018.

#

# This file is execfile()d with the current directory set to its

# containing dir.

#

# Note that not all possible configuration values are present in this

# autogenerated file.

#

# All configuration values have a default; values that are commented out

# serve to show the default.

# If extensions (or modules to document with autodoc) are in another directory,

# add these directories to sys.path here. If the directory is relative to the

# documentation root, use os.path.abspath to make it absolute, like shown here.

#

import os

import sys

# D:\Source\RAPTs\docs\source

sys.path.insert(0, os.path.abspath('../../RAPT'))

# -- General configuration ------------------------------------------------

# If your documentation needs a minimal Sphinx version, state it here.

#

# needs_sphinx = '1.0'

# Add any Sphinx extension module names here, as strings. They can be

# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom

# ones.

extensions = ['sphinx.ext.autodoc',

    'sphinx.ext.doctest',

    'sphinx.ext.intersphinx',

    'sphinx.ext.todo',

    'sphinx.ext.coverage',

    'sphinx.ext.viewcode',

    'sphinx.ext.napoleon']

# Add any paths that contain templates here, relative to this directory.

templates_path = ['_templates']

from recommonmark.parser import CommonMarkParser

source_parsers = {

    '.md': CommonMarkParser,

}

# The suffix(es) of source filenames.

# You can specify multiple suffix as a list of string:

#

source_suffix = ['.rst', '.md']

# The master toctree document.

master_doc = 'index'

# General information about the project.

project = 'RAPT'

copyright = '2018, umbum, kangprog, awakening95, domoor'

author = 'umbum, kangprog, awakening95, domoor'

# The version info for the project you're documenting, acts as replacement for

# |version| and |release|, also used in various other places throughout the

# built documents.

#

# The short X.Y version.

version = '0.1'

# The full version, including alpha/beta/rc tags.

release = '0.1'

# The language for content autogenerated by Sphinx. Refer to documentation

# for a list of supported languages.

#

# This is also used if you do content translation via gettext catalogs.

# Usually you set "language" from the command line for these cases.

language = None

# List of patterns, relative to source directory, that match files and

# directories to ignore when looking for source files.

# This patterns also effect to html_static_path and html_extra_path

exclude_patterns = []

# The name of the Pygments (syntax highlighting) style to use.

pygments_style = 'sphinx'

# If true, `todo` and `todoList` produce output, else they produce nothing.

todo_include_todos = True

# -- Options for HTML output ----------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for

# a list of builtin themes.

#

html_theme = 'sphinx_rtd_theme'

# html_theme = 'alabaster'

# Theme options are theme-specific and customize the look and feel of a theme

# further.  For a list of options available for each theme, see the

# documentation.

#

# html_theme_options = {}

# Add any paths that contain custom static files (such as style sheets) here,

# relative to this directory. They are copied after the builtin static files,

# so a file named "default.css" will overwrite the builtin "default.css".

html_static_path = ['_static']

# Custom sidebar templates, must be a dictionary that maps document names

# to template names.

#

# This is required for the alabaster theme

# refs: http://alabaster.readthedocs.io/en/latest/installation.html#sidebars

html_sidebars = {

    '**': [

        'relations.html',  # needs 'show_related': True theme option to display

        'searchbox.html',

    ]

}

# -- Options for HTMLHelp output ------------------------------------------

# Output file base name for HTML help builder.

htmlhelp_basename = 'RAPTdoc'

# -- Options for LaTeX output ---------------------------------------------

latex_elements = {

    # The paper size ('letterpaper' or 'a4paper').

    #

    # 'papersize': 'letterpaper',

    # The font size ('10pt', '11pt' or '12pt').

    #

    # 'pointsize': '10pt',

    # Additional stuff for the LaTeX preamble.

    #

    # 'preamble': '',

    # Latex figure (float) alignment

    #

    # 'figure_align': 'htbp',

}

# Grouping the document tree into LaTeX files. List of tuples

# (source start file, target name, title,

#  author, documentclass [howto, manual, or own class]).

latex_documents = [

    (master_doc, 'RAPT.tex', 'RAPT Documentation',

     'umbum, kangprog, awakening95, domoor', 'manual'),

]

# -- Options for manual page output ---------------------------------------

# One entry per manual page. List of tuples

# (source start file, name, description, authors, manual section).

man_pages = [

    (master_doc, 'rapt', 'RAPT Documentation',

     [author], 1)

]

# -- Options for Texinfo output -------------------------------------------

# Grouping the document tree into Texinfo files. List of tuples

# (source start file, target name, title, author,

#  dir menu entry, description, category)

texinfo_documents = [

    (master_doc, 'RAPT', 'RAPT Documentation',

     author, 'RAPT', 'One line description of project.',

     'Miscellaneous'),

]

# Example configuration for intersphinx: refer to the Python standard library.

intersphinx_mapping = {'https://docs.python.org/': None}

```

sphinx에서 reST말고 .md도 파싱하기

https://github.com/rtfd/recommonmark

2. sphinx-apidoc    # .rst 파일 생성

```

D:\Source\RAPTs

λ sphinx-apidoc.exe -f -o docs/source RAPT

```

쓸만한 옵션은 `` -f, -o, -e``

sidebar 설정

`` source/index.rst``에서 사이드바에 나타낼 디렉토리 이름 추가

```

.. toctree::

   :maxdepth: 2

   :caption: Contents:

   src

```

3. make.bat html

```

D:\Source\RAPTs\docs

λ make.bat html

```