Read the Docs build information
Build id: 1450811
Project: xanaduai-pennylane
Version: latest
Commit: b1a3c655a7ab7383ee442391106897d7b5712c21
Date: 2023-05-03T15:50:41.981365Z
State: finished
Success: False


[rtd-command-info] start-time: 2023-05-03T15:50:43.772665Z, end-time: 2023-05-03T15:50:54.238643Z, duration: 10, exit-code: 0
git clone --no-single-branch --depth 50 https://github.com/PennyLaneAI/pennylane.git .
Cloning into '.'...

[rtd-command-info] start-time: 2023-05-03T15:50:54.495325Z, end-time: 2023-05-03T15:50:54.867660Z, duration: 0, exit-code: 0
git checkout --force origin/master
Note: switching to 'origin/master'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at b1a3c655a Remove `collections`, `op_sum`, and `utils.sparse_hamiltonian` (#4071)

[rtd-command-info] start-time: 2023-05-03T15:50:55.056902Z, end-time: 2023-05-03T15:50:55.126541Z, duration: 0, exit-code: 0
git clean -d -f -f


[rtd-command-info] start-time: 2023-05-03T15:50:56.288807Z, end-time: 2023-05-03T15:51:01.099556Z, duration: 4, exit-code: 0
python3.8 -mvirtualenv $READTHEDOCS_VIRTUALENV_PATH
Using base prefix '/home/docs/.pyenv/versions/3.8.6'
New python executable in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/bin/python3.8
Also creating executable in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/bin/python
Installing setuptools, pip, wheel...
done.

[rtd-command-info] start-time: 2023-05-03T15:51:01.324588Z, end-time: 2023-05-03T15:51:02.443662Z, duration: 1, exit-code: 0
python -m pip install --upgrade --no-cache-dir pip setuptools
Requirement already satisfied: pip in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages (23.1.2)
Requirement already satisfied: setuptools in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages (67.7.2)

[rtd-command-info] start-time: 2023-05-03T15:51:02.637540Z, end-time: 2023-05-03T15:51:10.118471Z, duration: 7, exit-code: 0
python -m pip install --upgrade --no-cache-dir pillow mock==1.0.1 alabaster>=0.7,<0.8,!=0.7.5 commonmark==0.9.1 recommonmark==0.5.0 sphinx sphinx-rtd-theme readthedocs-sphinx-ext<2.3
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Building wheels for collected packages: mock
  Building wheel for mock (setup.py): started
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  Created wheel for mock: filename=mock-1.0.1-py3-none-any.whl size=23753 sha256=04fc29fc2ac900de1bd2b1cac05d1bc8d9500cd619213e20c5da89395cc860c8
  Stored in directory: /tmp/pip-ephem-wheel-cache-s6tdvh5g/wheels/41/7c/21/90057f91c6ead7c77a90c52d6e85ca48bf82d8b0d3f8dfbb65
Successfully built mock
Installing collected packages: snowballstemmer, pytz, mock, commonmark, zipp, urllib3, sphinxcontrib-serializinghtml, sphinxcontrib-qthelp, sphinxcontrib-jsmath, sphinxcontrib-htmlhelp, sphinxcontrib-devhelp, sphinxcontrib-applehelp, Pygments, pillow, packaging, MarkupSafe, imagesize, idna, docutils, charset-normalizer, certifi, babel, alabaster, requests, Jinja2, importlib-metadata, sphinx, readthedocs-sphinx-ext, sphinxcontrib-jquery, recommonmark, sphinx-rtd-theme
Successfully installed Jinja2-3.1.2 MarkupSafe-2.1.2 Pygments-2.15.1 alabaster-0.7.13 babel-2.12.1 certifi-2022.12.7 charset-normalizer-3.1.0 commonmark-0.9.1 docutils-0.18.1 idna-3.4 imagesize-1.4.1 importlib-metadata-6.6.0 mock-1.0.1 packaging-23.1 pillow-9.5.0 pytz-2023.3 readthedocs-sphinx-ext-2.2.0 recommonmark-0.5.0 requests-2.30.0 snowballstemmer-2.2.0 sphinx-6.2.1 sphinx-rtd-theme-1.2.0 sphinxcontrib-applehelp-1.0.4 sphinxcontrib-devhelp-1.0.2 sphinxcontrib-htmlhelp-2.0.1 sphinxcontrib-jquery-4.1 sphinxcontrib-jsmath-1.0.1 sphinxcontrib-qthelp-1.0.3 sphinxcontrib-serializinghtml-1.1.5 urllib3-2.0.1 zipp-3.15.0

[rtd-command-info] start-time: 2023-05-03T15:51:10.367517Z, end-time: 2023-05-03T15:52:46.505823Z, duration: 96, exit-code: 0
python -m pip install --exists-action=w --no-cache-dir -r doc/requirements.txt
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WARNING: The candidate selected for download or install is a yanked version: 'networkx' candidate (version 2.6 at https://files.pythonhosted.org/packages/b2/87/30ed9e62d5459bbf22b335fc2d9d1faf979d44b1c55a1f0455da0afd756e/networkx-2.6-py3-none-any.whl (from https://pypi.org/simple/networkx/) (requires-python:>=3.7))
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Installing collected packages: tensorboard-plugin-wit, mistune, libclang, flatbuffers, appdirs, wrapt, werkzeug, urllib3, tzdata, typing_extensions, toml, termcolor, tensorflow-io-gcs-filesystem, tensorflow-estimator, tensorboard-data-server, six, semantic_version, PyYAML, pyparsing, pygments-github-lexers, pyasn1, protobuf, oauthlib, numpy, kiwisolver, keras, jinja2, importlib-resources, grpcio, graphviz, gast, future, fonttools, etils, docutils, cycler, cachetools, autoray, absl-py, torch, scipy, rustworkx, rsa, requests, python-dateutil, pyasn1-modules, opt_einsum, markdown, m2r2, latexcodec, h5py, google-pasta, contourpy, autograd, astunparse, torchvision, tensornetwork, sphinx, requests-oauthlib, pybtex, pandas, matplotlib, jaxlib, google-auth, sphinx-gallery, sphinx-copybutton, sphinx-automodapi, pybtex-docutils, networkx, jax, google-auth-oauthlib, xanadu-sphinx-theme, tensorboard, sphinxcontrib-bibtex, tensorflow, pennylane-sphinx-theme
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[rtd-command-info] start-time: 2023-05-03T15:52:46.798245Z, end-time: 2023-05-03T15:52:57.533985Z, duration: 10, exit-code: 0
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  Stored in directory: /tmp/pip-ephem-wheel-cache-9h4pakgr/wheels/f9/8c/4a/855b9711bbe04e90e7a549b79f48470ae9d33456c1974b1f65
Successfully built PennyLane
Installing collected packages: urllib3, numpy, networkx, requests, pennylane-lightning, PennyLane
  Attempting uninstall: urllib3
    Found existing installation: urllib3 1.26.15
    Uninstalling urllib3-1.26.15:
      Successfully uninstalled urllib3-1.26.15
  Attempting uninstall: numpy
    Found existing installation: numpy 1.24.3
    Uninstalling numpy-1.24.3:
      Successfully uninstalled numpy-1.24.3
  Attempting uninstall: networkx
    Found existing installation: networkx 2.6
    Uninstalling networkx-2.6:
      Successfully uninstalled networkx-2.6
  Attempting uninstall: requests
    Found existing installation: requests 2.28.2
    Uninstalling requests-2.28.2:
      Successfully uninstalled requests-2.28.2
Successfully installed PennyLane-0.31.0.dev0 networkx-3.1 numpy-1.23.5 pennylane-lightning-0.30.0 requests-2.30.0 urllib3-2.0.1

[rtd-command-info] start-time: 2023-05-03T15:52:59.718313Z, end-time: 2023-05-03T15:52:59.784343Z, duration: 0, exit-code: 0
cat doc/conf.py
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# PennyLane documentation build configuration file, created by
# sphinx-quickstart on Tue Apr 17 11:43:51 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.
import os
import re
import sys

# 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.
sys.path.insert(0, os.path.abspath(".."))
sys.path.insert(0, os.path.abspath("_ext"))
sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(".")), "doc"))

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

# If your documentation needs a minimal Sphinx version, state it here.
needs_sphinx = "3.3"

# 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.autosummary",
    "sphinx.ext.todo",
    "sphinx.ext.coverage",
    "sphinx.ext.mathjax",
    "sphinx.ext.napoleon",
    "sphinx.ext.inheritance_diagram",
    "sphinx.ext.viewcode",
    "sphinxcontrib.bibtex",
    "sphinx.ext.graphviz",
    "sphinx.ext.intersphinx",
    "sphinx_automodapi.automodapi",
    "sphinx_copybutton",
    "m2r2",
]

os.environ["SPHINX_BUILD"] = "1"

autosummary_generate = True
autosummary_imported_members = False
automodapi_toctreedirnm = "code/api"
automodapi_inheritance_diagram = False
automodsumm_inherited_members = True

# Hot fix for the error: 'You must configure the bibtex_bibfiles setting'
bibtex_bibfiles = ["bibfile.bib"]

copybutton_prompt_text = r">>> |\.\.\. |\$ |In \[\d*\]: | {2,5}\.\.\.: | {5,8}: "
copybutton_prompt_is_regexp = True

intersphinx_mapping = {"https://pennylane.ai/qml/": None}
mathjax_path = (
    "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML"
)
ignore_warnings = [("code/api/qml_transforms*", "no module named pennylane.transforms")]

# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]

# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
source_suffix = ".rst"

# The master toctree document.
master_doc = "index"

# General information about the project.
project = "PennyLane"
copyright = "2022, Xanadu Quantum Technologies"
author = "Xanadu Inc."

add_module_names = False

# 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.

import pennylane

# The full version, including alpha/beta/rc tags.
release = pennylane.__version__

# The short X.Y version.
version = re.match(r"^(\d+\.\d+)", release).expand(r"\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

# today_fmt is used as the format for a strftime call.
today_fmt = "%Y-%m-%d"

# 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 = ["_build", "Thumbs.db", ".DS_Store"]

# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
show_authors = True

# 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 = False


# -- 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 = "nature"

# 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 themes here, relative to this directory.

# The name for this set of Sphinx documents.  If None, it defaults to
# "<project> v<release> documentation".
# html_title = None

# A shorter title for the navigation bar.  Default is the same as html_title.
# html_short_title = None

# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
# html_logo = None

# The name of an image file (relative to this directory) to use as a favicon of
# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
# html_favicon = "_static/favicon.ico"

# 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"]

# Add any extra paths that contain custom files (such as robots.txt or
# .htaccess) here, relative to this directory. These files are copied
# directly to the root of the documentation.
# html_extra_path = []

# If not "", a "Last updated on:" timestamp is inserted at every page bottom,
# using the given strftime format.
# html_last_updated_fmt = "%b %d, %Y"

# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
# html_use_smartypants = True

# Custom sidebar templates, must be a dictionary that maps document names
# to template names.
# html_sidebars = {
#     "**": [
#     ]
# }

# Additional templates that should be rendered to pages, maps page names to
# template names.
# html_additional_pages = {}

# If false, no module index is generated.
# html_domain_indices = True

# If false, no index is generated.
# html_use_index = True

# If true, the index is split into individual pages for each letter.
# html_split_index = False

# If true, links to the reST sources are added to the pages.
# html_show_sourcelink = True

# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
# html_show_sphinx = True

# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
# html_show_copyright = True

# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it.  The value of this option must be the
# base URL from which the finished HTML is served.
# html_use_opensearch = ""

# This is the file name suffix for HTML files (e.g., ".xhtml").
# html_file_suffix = None

# Language to be used for generating the HTML full-text search index.
# Sphinx supports the following languages:
#   "da", "de", "en", "es", "fi", "fr", "h", "it", "ja"
#   "nl", "no", "pt", "ro", "r", "sv", "tr"
# html_search_language = "en"

# A dictionary with options for the search language support, empty by default.
# Now only "ja" uses this config value
# html_search_options = {"type": "default"}

# The name of a javascript file (relative to the configuration directory) that
# implements a search results scorer. If empty, the default will be used.
# html_search_scorer = "scorer.js"

# Output file base name for HTML help builder.
htmlhelp_basename = "PennyLanedoc"

# -- Xanadu theme ---------------------------------------------------------
html_theme = "pennylane"

# Xanadu theme options (see theme.conf for more information).
html_theme_options = {
    "navbar_active_link": 4,
    "extra_copyrights": [
        "TensorFlow, the TensorFlow logo, and any related marks are trademarks " "of Google Inc."
    ],
    "google_analytics_tracking_id": "UA-130507810-1",
}

edit_on_github_project = "PennyLaneAI/pennylane"
edit_on_github_branch = "master/doc"

# -- 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",
}

latex_additional_files = ["macros.tex"]

# 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, "PennyLane.tex", "PennyLane Documentation", "Xanadu Inc.", "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, "pennylane", "PennyLane 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,
        "PennyLane",
        "PennyLane Documentation",
        author,
        "PennyLane",
        "Xanadu quantum machine learning library.",
        "Miscellaneous",
    ),
]


# ============================================================

# the order in which autodoc lists the documented members
autodoc_member_order = "bysource"

# remove types from function signatures
autodoc_typehints = "none"

# inheritance_diagram graphviz attributes
inheritance_node_attrs = dict(color="lightskyblue1", style="filled")




###########################################################################
#          auto-created readthedocs.org specific configuration            #
###########################################################################


#
# The following code was added during an automated build on readthedocs.org
# It is auto created and injected for every build. The result is based on the
# conf.py.tmpl file found in the readthedocs.org codebase:
# https://github.com/rtfd/readthedocs.org/blob/main/readthedocs/doc_builder/templates/doc_builder/conf.py.tmpl
#
# Note: this file shouldn't rely on extra dependencies.

import importlib
import sys
import os.path

# Borrowed from six.
PY3 = sys.version_info[0] == 3
string_types = str if PY3 else basestring

from sphinx import version_info

# Get suffix for proper linking to GitHub
# This is deprecated in Sphinx 1.3+,
# as each page can have its own suffix
if globals().get('source_suffix', False):
    if isinstance(source_suffix, string_types):
        SUFFIX = source_suffix
    elif isinstance(source_suffix, (list, tuple)):
        # Sphinx >= 1.3 supports list/tuple to define multiple suffixes
        SUFFIX = source_suffix[0]
    elif isinstance(source_suffix, dict):
        # Sphinx >= 1.8 supports a mapping dictionary for multiple suffixes
        SUFFIX = list(source_suffix.keys())[0]  # make a ``list()`` for py2/py3 compatibility
    else:
        # default to .rst
        SUFFIX = '.rst'
else:
    SUFFIX = '.rst'

# Add RTD Static Path. Add to the end because it overwrites previous files.
if not 'html_static_path' in globals():
    html_static_path = []
if os.path.exists('_static'):
    html_static_path.append('_static')

# Add RTD Theme only if they aren't overriding it already
using_rtd_theme = (
    (
        'html_theme' in globals() and
        html_theme in ['default'] and
        # Allow people to bail with a hack of having an html_style
        'html_style' not in globals()
    ) or 'html_theme' not in globals()
)
if using_rtd_theme:
    html_theme = 'sphinx_rtd_theme'
    html_style = None
    html_theme_options = {}


# This following legacy behavior will gradually be sliced out until its deprecated and removed.
# Skipped for Sphinx 6+
# Skipped by internal Feature flag SKIP_SPHINX_HTML_THEME_PATH
# Skipped by all new projects since SKIP_SPHINX_HTML_THEME_PATH's introduction (jan 2023)
if (
        using_rtd_theme
        and version_info < (6,0)
        and not False
    ):
    theme = importlib.import_module('sphinx_rtd_theme')
    if 'html_theme_path' in globals():
        html_theme_path.append(theme.get_html_theme_path())
    else:
        html_theme_path = [theme.get_html_theme_path()]

# Define websupport2_base_url and websupport2_static_url
if globals().get('websupport2_base_url', False):
    websupport2_base_url = 'https://readthedocs.com/websupport'
    websupport2_static_url = 'https://assets.readthedocs.com/'


#Add project information to the template context.
context = {
    'using_theme': using_rtd_theme,
    'html_theme': html_theme,
    'current_version': "latest",
    'version_slug': "latest",
    'MEDIA_URL': "https://media.readthedocs.com/media/",
    'STATIC_URL': "https://assets.readthedocs.com/",
    'PRODUCTION_DOMAIN': "readthedocs.com",
    'proxied_static_path': "/_/static/",
    'versions': [
    ("latest", "/en/latest/"),
    ("stable", "/en/stable/"),
    ],
    'downloads': [ 
    ("html", "//docs.pennylane.ai/_/downloads/en/latest/htmlzip/"),
    ],
    'subprojects': [ 
        ("xanaduai-pennylane-lightning", "https://docs.pennylane.ai/projects/lightning/en/stable/"),
        ("xanaduai-pennylane-cirq", "https://docs.pennylane.ai/projects/cirq/en/latest/"),
        ("xanaduai-pennylane-aqt", "https://docs.pennylane.ai/projects/aqt/en/latest/"),
        ("xanaduai-pennylane-lightning-gpu", "https://docs.pennylane.ai/projects/lightning-gpu/en/latest/"),
        ("xanaduai-pennylane-qiskit", "https://docs.pennylane.ai/projects/qiskit/en/latest/"),
        ("xanaduai-pennylane-sf", "https://docs.pennylane.ai/projects/strawberryfields/en/latest/"),
        ("xanaduai-pennylane-qsharp", "https://docs.pennylane.ai/projects/qsharp/en/latest/"),
        ("xanaduai-pennylane-qulacs", "https://docs.pennylane.ai/projects/qulacs/en/latest/"),
        ("xanaduai-pennylane-forest", "https://docs.pennylane.ai/projects/rigetti/en/latest/"),
        ("xanaduai-pennylane-honeywell", "https://docs.pennylane.ai/projects/honeywell/en/latest/"),
        ("xanaduai-pennylane-ionq", "https://docs.pennylane.ai/projects/ionq/en/latest/"),
        ("xanaduai-pennylane-orquestra", "https://docs.pennylane.ai/projects/orquestra/en/latest/"),
        ("xanaduai-pennylane-pq", "https://docs.pennylane.ai/projects/projectq/en/latest/"),
        ("xanaduai-pennylane-lightning-kokkos", "https://docs.pennylane.ai/projects/lightning-kokkos/en/latest/"),
        ("xanaduai-pennylane-sphinx-theme", "https://docs.pennylane.ai/projects/sphinx-theme/en/latest/"),
        ("xanaduai-catalyst", "https://docs.pennylane.ai/projects/catalyst/en/latest/"),
    ],
    'slug': 'xanaduai-pennylane',
    'name': u'pennylane',
    'rtd_language': u'en',
    'programming_language': u'words',
    'canonical_url': 'https://docs.pennylane.ai/en/stable/',
    'analytics_code': 'None',
    'single_version': False,
    'conf_py_path': '/doc/',
    'api_host': 'https://readthedocs.com',
    'github_user': 'PennyLaneAI',
    'proxied_api_host': '/_',
    'github_repo': 'pennylane',
    'github_version': 'master',
    'display_github': True,
    'bitbucket_user': 'None',
    'bitbucket_repo': 'None',
    'bitbucket_version': 'master',
    'display_bitbucket': False,
    'gitlab_user': 'None',
    'gitlab_repo': 'None',
    'gitlab_version': 'master',
    'display_gitlab': False,
    'READTHEDOCS': True,
    'using_theme': (html_theme == "default"),
    'new_theme': (html_theme == "sphinx_rtd_theme"),
    'source_suffix': SUFFIX,
    'ad_free': False,
    'docsearch_disabled': False,
    'user_analytics_code': '',
    'global_analytics_code': 'UA-17997319-2',
    'commit': 'b1a3c655',
}

# For sphinx >=1.8 we can use html_baseurl to set the canonical URL.
# https://www.sphinx-doc.org/en/master/usage/configuration.html#confval-html_baseurl
if version_info >= (1, 8):
    if not globals().get('html_baseurl'):
        html_baseurl = context['canonical_url']
    context['canonical_url'] = None





if 'html_context' in globals():
    
    html_context.update(context)
    
else:
    html_context = context

# Add custom RTD extension
if 'extensions' in globals():
    # Insert at the beginning because it can interfere
    # with other extensions.
    # See https://github.com/rtfd/readthedocs.org/pull/4054
    extensions.insert(0, "readthedocs_ext.readthedocs")
else:
    extensions = ["readthedocs_ext.readthedocs"]

# Add External version warning banner to the external version documentation
if 'branch' == 'external':
    extensions.insert(1, "readthedocs_ext.external_version_warning")
    readthedocs_vcs_url = 'None'
    readthedocs_build_url = 'https://readthedocs.com/projects/xanaduai-pennylane/builds/1450811/'

project_language = 'en'

# User's Sphinx configurations
language_user = globals().get('language', None)
latex_engine_user = globals().get('latex_engine', None)
latex_elements_user = globals().get('latex_elements', None)

# Remove this once xindy gets installed in Docker image and XINDYOPS
# env variable is supported
# https://github.com/rtfd/readthedocs-docker-images/pull/98
latex_use_xindy = False

chinese = any([
    language_user in ('zh_CN', 'zh_TW'),
    project_language in ('zh_CN', 'zh_TW'),
])

japanese = any([
    language_user == 'ja',
    project_language == 'ja',
])

if chinese:
    latex_engine = latex_engine_user or 'xelatex'

    latex_elements_rtd = {
        'preamble': '\\usepackage[UTF8]{ctex}\n',
    }
    latex_elements = latex_elements_user or latex_elements_rtd
elif japanese:
    latex_engine = latex_engine_user or 'platex'

# Make sure our build directory is always excluded
exclude_patterns = globals().get('exclude_patterns', [])
exclude_patterns.extend(['_build'])

[rtd-command-info] start-time: 2023-05-03T15:53:00.057459Z, end-time: 2023-05-03T15:53:04.976241Z, duration: 4, exit-code: 2
python -m sphinx -T -E -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/html
Running Sphinx v3.5.0
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/transforms/batch_transform.py:194: UserWarning: Batch transformations have been disabled, as a Sphinx build has been detected via SPHINX_BUILD='1'. If this is not the case, please set the environment variable SPHINX_BUILD='0'.
  warnings.warn(
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/transforms/qfunc_transforms.py:367: UserWarning: qfunc transformations have been disabled, as a Sphinx build has been detected via SPHINX_BUILD='1'. If this is not the case, please set the environment variable SPHINX_BUILD='0'.
  warnings.warn(
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/transforms/op_transforms.py:180: UserWarning: Operator transformations have been disabled, as a Sphinx build has been detected via SPHINX_BUILD='1'. If this is not the case, please set the environment variable SPHINX_BUILD='0'.
  warnings.warn(

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/config.py", line 327, in eval_config_file
    execfile_(filename, namespace)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/util/pycompat.py", line 88, in execfile_
    exec(code, _globals)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/conf.py", line 92, in <module>
    import pennylane
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/__init__.py", line 106, in <module>
    import pennylane.data
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/__init__.py", line 30, in <module>
    from .data_manager import load, load_interactive, list_datasets, list_attributes
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/data_manager.py", line 25, in <module>
    import requests
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/urllib3/__init__.py", line 38, in <module>
    raise ImportError(
ImportError: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with OpenSSL 1.0.2n  7 Dec 2017. See: https://github.com/urllib3/urllib3/issues/2168

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/cmd/build.py", line 276, in build_main
    app = Sphinx(args.sourcedir, args.confdir, args.outputdir,
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/application.py", line 219, in __init__
    self.config = Config.read(self.confdir, confoverrides or {}, self.tags)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/config.py", line 174, in read
    namespace = eval_config_file(filename, tags)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/config.py", line 340, in eval_config_file
    raise ConfigError(msg % traceback.format_exc()) from exc
sphinx.errors.ConfigError: There is a programmable error in your configuration file:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/config.py", line 327, in eval_config_file
    execfile_(filename, namespace)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/util/pycompat.py", line 88, in execfile_
    exec(code, _globals)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/conf.py", line 92, in <module>
    import pennylane
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/__init__.py", line 106, in <module>
    import pennylane.data
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/__init__.py", line 30, in <module>
    from .data_manager import load, load_interactive, list_datasets, list_attributes
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/data_manager.py", line 25, in <module>
    import requests
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/urllib3/__init__.py", line 38, in <module>
    raise ImportError(
ImportError: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with OpenSSL 1.0.2n  7 Dec 2017. See: https://github.com/urllib3/urllib3/issues/2168


Configuration error:
There is a programmable error in your configuration file:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/config.py", line 327, in eval_config_file
    execfile_(filename, namespace)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/sphinx/util/pycompat.py", line 88, in execfile_
    exec(code, _globals)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/conf.py", line 92, in <module>
    import pennylane
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/__init__.py", line 106, in <module>
    import pennylane.data
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/__init__.py", line 30, in <module>
    from .data_manager import load, load_interactive, list_datasets, list_attributes
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/data/data_manager.py", line 25, in <module>
    import requests
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.8/site-packages/urllib3/__init__.py", line 38, in <module>
    raise ImportError(
ImportError: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with OpenSSL 1.0.2n  7 Dec 2017. See: https://github.com/urllib3/urllib3/issues/2168