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A Sphinx theme for Qiskit and Qiskit Ecosystem projects

Project description

qiskit-sphinx-theme

The Sphinx theme for Qiskit ecosystem documentation.

Warning: new theme migration

In qiskit-sphinx-theme 1.14, we replaced the old qiskit_sphinx_theme based on Pytorch with the new qiskit-ecosystem theme based on Furo. The old theme was removed in qiskit-sphinx-theme 2.0.

See Migrate from old Pytorch theme to new theme for migration instructions.

Overview

This repository hosts three things:

  • qiskit-ecosystem theme (located in the src/ folder)
  • example docs (located in the example_docs/ folder)
  • Qiskit Docs Guide (located in the docs_guide/ folder)

The qiskit-ecosystem theme is used by projects in the Qiskit ecosystem.

The example docs are a minimal Sphinx project that is used for testing the Qiskit Sphinx Theme. Every pull request will trigger a GitHub workflow that builds the example docs to make sure the changes do not introduce unintended changes.

The Qiskit Docs Guide hosts instructions, guidelines and recommendations of good documentation practices. Its intent is to help Qiskit maintainers improve the documentation of their projects. The guide is hosted online here: https://qisk.it/docs-guide.

Installation

This package is available on PyPI using:

pip install qiskit-sphinx-theme

Then, set up the theme by updating conf.py:

  1. Set html_theme = "qiskit-ecosystem"
  2. Add "qiskit_sphinx_theme" to extensions

You also likely want to set html_title in conf.py. This results in the left sidebar having a more useful and concise name, along with the page title in the browser. Most projects will want to use this in their conf.py:

# Sphinx expects you to set these already.
project = "My Project"
release = "4.12"

# This sets the title to e.g. `My Project 4.12`.
html_title = f"{project} {release}"

Enable translations

Refer to Sphinx's internationalization guide for how to build your documentation with different languages.

Once you have the translated documentation, you will need to start additionally deploying your docs to <project-prefix>/locale/<locale-code>/, e.g. https://qiskit-community.github.io/qiskit-finance/locale/de_DE/index.html.

Finally, update your conf.py:

  • Ensure that qiskit_sphinx_theme is in the extensions setting.
  • Set the option translations_list to a list of pairs of the locale code and the language name, e.g. [..., ("de_DE", "German")].
  • Set the option docs_url_prefix to your project's URL prefix, like qiskit-finance.

For example:

extensions = [
   ...,
   "qiskit_sphinx_theme",
]

translations_list = [
    ('en', 'English'),
    ('bn_BN', 'Bengali'),
    ('fr_FR', 'French'),
    ('de_DE', 'German'),
]

docs_url_prefix = "qiskit-finance"

Enable Previous Releases

This feature allows you to link to previous versions of the docs in the left sidebar.

First, start additionally deploying your docs to <project-prefix>/stable/<version>/, e.g. https://qiskit-community.github.io/qiskit-experiments/stable/0.5/index.html. See https://github.com/qiskit-community/qiskit-experiments/blob/7a0924c24549ab4f38819a86c0ac49214d819ba2/.github/workflows/docs_stable.yml#L25-L38 for an example.

Then, update your conf.py:

  • Ensure that qiskit_sphinx_theme is in the extensions setting.
  • Add to the option html_context an entry for version_list with a list of the prior versions, e.g. ["0.4", "0.5"].
    • Each of these versions must be deployed with the above stable/<version> URL scheme.
    • You can manually set this, or some projects write a Sphinx extension to dynamically compute the value.
    • You should only put prior versions in this list, not the current release.
  • Set the option docs_url_prefix to your project's URL prefix, like qiskit-experiments.

For example:

extensions = [
   ...,
   "qiskit_sphinx_theme",
]

html_context = {
   "version_list": ["0.4", "0.5"],
}

docs_url_prefix = "qiskit-experiments"

Use custom RST directives

The qiskit_sphinx_theme extension defines the below custom directives for you to use in RST, if you'd like. See example_docs/docs/sphinx_guide/custom_directives.rst for examples of how to use them.

  • qiskit-card
  • qiskit-call-to-action-item and qiskit-call-to-action-grid

Add a custom logo

You can add a custom logo by adding a logo file (SVG or PNG) as a sibling to your conf.py, e.g. docs/logo.svg. Then, set html_logo in conf.py to the name of the file, e.g. html_logo = "logo.png".

When using a custom logo, you may want to disable the project's name in the sidebar by setting sidebar_hide_name in html_theme_options in conf.py:

html_theme_options = {
    "sidebar_hide_name": True,
}

Qiskit ecosystem members

If your project is a member of the Qiskit ecosystem, we encourage you to set the following configuration so that the left sidebar mentions your project being in the ecosystem.

Update conf.py:

html_theme_options = {
    "sidebar_qiskit_ecosystem_member": True,
}

Non-ecosystem members should not set this option.

Tip: suggested site structure

To keep UX/UI similar across different Qiskit ecosystem packages, consider using the following structure for your sidebar, which can be set in the toctree of your index.rst:

.. toctree::
  :hidden:

   Documentation Home <index>
   Getting Started <getting_started>
   Tutorials <tutorials/index>
   How-to Guides <how_to/index>
   API Reference <apidocs/index>
   Explanations <explanations/index>
   Release Notes <release_notes>
   GitHub <https://github.com/your-repo>

Each item in the toctree corresponds to a single .rst file, and can use internal links or external. External links will have a "new tab" icon rendered next to them.

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