Read the Docs build information
Build id: 3028955
Project: xanaduai-pennylane
Version: latest
Commit: 907fa29f8476c93ee2fda0cc4c78fa8efda95d61
Date: 2025-05-08T09:51:46.237249Z
State: finished
Success: False


[rtd-command-info] start-time: 2025-05-08T09:51:47.187877Z, end-time: 2025-05-08T09:51:49.564836Z, duration: 2, exit-code: 0
git clone --depth 1 https://github.com/PennyLaneAI/pennylane.git .
Cloning into '.'...

[rtd-command-info] start-time: 2025-05-08T09:51:49.628357Z, end-time: 2025-05-08T09:51:50.712955Z, duration: 1, exit-code: 0
git fetch origin --force --prune --prune-tags --depth 50 refs/heads/master:refs/remotes/origin/master


[rtd-command-info] start-time: 2025-05-08T09:51:50.810886Z, end-time: 2025-05-08T09:51:51.216349Z, 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 907fa29 [no ci] bump nightly version

[rtd-command-info] start-time: 2025-05-08T09:51:51.277172Z, end-time: 2025-05-08T09:51:51.314416Z, duration: 0, exit-code: 0
cat .readthedocs.yml
# .readthedocs.yml
# Read the Docs configuration file
# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details

# Required
version: 2

build:
  os: ubuntu-22.04
  tools:
    python: "3.10"
  apt_packages:
    - graphviz

# Build documentation in the docs/ directory with Sphinx
sphinx:
  configuration: doc/conf.py

# Build documentation with MkDocs
#mkdocs:
#  configuration: mkdocs.yml

# Optionally build your docs in additional formats such as PDF and ePub
formats:
  - htmlzip

# Optionally set the version of Python and requirements required to build your docs
python:
  install:
    - requirements: doc/requirements.txt
    - method: pip
      path: .

[rtd-command-info] start-time: 2025-05-08T09:51:52.110125Z, end-time: 2025-05-08T09:52:01.751860Z, duration: 9, exit-code: 0
apt-get update --assume-yes --quiet
Hit:1 http://archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]
Get:3 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]
Get:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]
Get:5 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1546 kB]
Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [2901 kB]
Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [55.7 kB]
Get:8 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3211 kB]
Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [4436 kB]
Get:10 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [83.2 kB]
Get:11 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [35.2 kB]
Get:12 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1245 kB]
Get:13 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [47.7 kB]
Get:14 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [4282 kB]
Fetched 18.2 MB in 2s (8370 kB/s)
Reading package lists...

[rtd-command-info] start-time: 2025-05-08T09:52:01.811822Z, end-time: 2025-05-08T09:52:39.146748Z, duration: 37, exit-code: 0
apt-get install --assume-yes --quiet -- graphviz
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
  fonts-liberation libann0
Suggested packages:
  graphviz-doc
The following NEW packages will be installed:
  fonts-liberation graphviz libann0
0 upgraded, 3 newly installed, 0 to remove and 223 not upgraded.
Need to get 1500 kB of archives.
After this operation, 4700 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu jammy/main amd64 fonts-liberation all 1:1.07.4-11 [822 kB]
Get:2 http://archive.ubuntu.com/ubuntu jammy/universe amd64 libann0 amd64 1.1.2+doc-7build1 [26.0 kB]
Get:3 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 graphviz amd64 2.42.2-6ubuntu0.1 [653 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 1500 kB in 1s (1183 kB/s)
Selecting previously unselected package fonts-liberation.
(Reading database ... 
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(Reading database ... 272117 files and directories currently installed.)
Preparing to unpack .../fonts-liberation_1%3a1.07.4-11_all.deb ...
Unpacking fonts-liberation (1:1.07.4-11) ...
Selecting previously unselected package libann0.
Preparing to unpack .../libann0_1.1.2+doc-7build1_amd64.deb ...
Unpacking libann0 (1.1.2+doc-7build1) ...
Selecting previously unselected package graphviz.
Preparing to unpack .../graphviz_2.42.2-6ubuntu0.1_amd64.deb ...
Unpacking graphviz (2.42.2-6ubuntu0.1) ...
Setting up libann0 (1.1.2+doc-7build1) ...
Setting up fonts-liberation (1:1.07.4-11) ...
Setting up graphviz (2.42.2-6ubuntu0.1) ...
Processing triggers for libc-bin (2.35-0ubuntu3.6) ...
Processing triggers for fontconfig (2.13.1-4.2ubuntu5) ...

[rtd-command-info] start-time: 2025-05-08T09:52:42.241616Z, end-time: 2025-05-08T09:52:42.298339Z, duration: 0, exit-code: 0
asdf global python 3.10.15


[rtd-command-info] start-time: 2025-05-08T09:52:42.674524Z, end-time: 2025-05-08T09:52:43.503403Z, duration: 0, exit-code: 0
python -mvirtualenv $READTHEDOCS_VIRTUALENV_PATH
created virtual environment CPython3.10.15.final.0-64 in 443ms
  creator CPython3Posix(dest=/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/home/docs/.local/share/virtualenv)
    added seed packages: pip==23.1, setuptools==67.6.1, wheel==0.40.0
  activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator

[rtd-command-info] start-time: 2025-05-08T09:52:43.566017Z, end-time: 2025-05-08T09:52:48.729738Z, duration: 5, 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/python3.10/site-packages (23.1)
Collecting pip
  Downloading pip-25.1.1-py3-none-any.whl (1.8 MB)
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Requirement already satisfied: setuptools in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages (67.6.1)
Collecting setuptools
  Downloading setuptools-80.3.1-py3-none-any.whl (1.2 MB)
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Installing collected packages: setuptools, pip
  Attempting uninstall: setuptools
    Found existing installation: setuptools 67.6.1
    Uninstalling setuptools-67.6.1:
      Successfully uninstalled setuptools-67.6.1
  Attempting uninstall: pip
    Found existing installation: pip 23.1
    Uninstalling pip-23.1:
      Successfully uninstalled pip-23.1
Successfully installed pip-25.1.1 setuptools-80.3.1

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python -m pip install --upgrade --no-cache-dir sphinx
Collecting sphinx
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Downloading tomli-2.2.1-py3-none-any.whl (14 kB)
Installing collected packages: urllib3, tomli, sphinxcontrib-serializinghtml, sphinxcontrib-qthelp, sphinxcontrib-jsmath, sphinxcontrib-htmlhelp, sphinxcontrib-devhelp, sphinxcontrib-applehelp, snowballstemmer, Pygments, packaging, MarkupSafe, imagesize, idna, docutils, charset-normalizer, certifi, babel, alabaster, requests, Jinja2, sphinx

Successfully installed Jinja2-3.1.6 MarkupSafe-3.0.2 Pygments-2.19.1 alabaster-1.0.0 babel-2.17.0 certifi-2025.4.26 charset-normalizer-3.4.2 docutils-0.21.2 idna-3.10 imagesize-1.4.1 packaging-25.0 requests-2.32.3 snowballstemmer-3.0.0 sphinx-8.1.3 sphinxcontrib-applehelp-2.0.0 sphinxcontrib-devhelp-2.0.0 sphinxcontrib-htmlhelp-2.1.0 sphinxcontrib-jsmath-1.0.1 sphinxcontrib-qthelp-2.0.0 sphinxcontrib-serializinghtml-2.0.0 tomli-2.2.1 urllib3-2.4.0

[rtd-command-info] start-time: 2025-05-08T09:52:53.380809Z, end-time: 2025-05-08T09:55:47.588923Z, duration: 174, exit-code: 0
python -m pip install --exists-action=w --no-cache-dir -r doc/requirements.txt
Ignoring tensorflow_macos: markers 'sys_platform == "darwin" and platform_machine == "arm64"' don't match your environment
Requirement already satisfied: pip in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages (from -r doc/requirements.txt (line 1)) (25.1.1)
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Collecting numpy (from -r doc/requirements.txt (line 10))
  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))': /packages/c2/70/fed13c70aabe7049368553e81d7ca40f305f305800a007a956d7cd2e5476/numpy-2.2.5-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata
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  Preparing metadata (setup.py): started
  Preparing metadata (setup.py): finished with status 'done'
Requirement already satisfied: packaging in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages (from -r doc/requirements.txt (line 12)) (25.0)
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Requirement already satisfied: sphinxcontrib-htmlhelp==2.1.0 in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages (from -r doc/requirements.txt (line 22)) (2.1.0)
Requirement already satisfied: sphinxcontrib-serializinghtml==2.0.0 in /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages (from -r doc/requirements.txt (line 23)) (2.0.0)
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Building wheels for collected packages: pygments-github-lexers
  DEPRECATION: Building 'pygments-github-lexers' using the legacy setup.py bdist_wheel mechanism, which will be removed in a future version. pip 25.3 will enforce this behaviour change. A possible replacement is to use the standardized build interface by setting the `--use-pep517` option, (possibly combined with `--no-build-isolation`), or adding a `pyproject.toml` file to the source tree of 'pygments-github-lexers'. Discussion can be found at https://github.com/pypa/pip/issues/6334
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Successfully installed PyYAML-6.0.2 absl-py-2.2.2 appdirs-1.4.4 astunparse-1.6.3 autograd-1.8.0 autoray-0.7.1 cachetools-5.5.2 contourpy-1.3.2 cycler-0.12.1 diastatic-malt-2.15.2 docutils-0.20 filelock-3.18.0 flatbuffers-25.2.10 fonttools-4.57.0 fsspec-2025.3.2 gast-0.6.0 google-pasta-0.2.0 graphviz-0.20.3 grpcio-1.71.0 h5py-3.13.0 importlib_resources-6.5.2 jax-0.4.28 jaxlib-0.4.28 keras-3.9.2 kiwisolver-1.4.8 latexcodec-3.0.0 libclang-18.1.1 m2r2-0.3.4 markdown-3.8 markdown-it-py-3.0.0 matplotlib-3.8.0 mdurl-0.1.2 mistune-0.8.4 ml-dtypes-0.4.1 mpmath-1.3.0 namex-0.0.9 networkx-3.1 numpy-1.26.4 nvidia-cublas-cu12-12.4.5.8 nvidia-cuda-cupti-cu12-12.4.127 nvidia-cuda-nvrtc-cu12-12.4.127 nvidia-cuda-runtime-cu12-12.4.127 nvidia-cudnn-cu12-9.1.0.70 nvidia-cufft-cu12-11.2.1.3 nvidia-curand-cu12-10.3.5.147 nvidia-cusolver-cu12-11.6.1.9 nvidia-cusparse-cu12-12.3.1.170 nvidia-nccl-cu12-2.21.5 nvidia-nvjitlink-cu12-12.4.127 nvidia-nvtx-cu12-12.4.127 opt-einsum-3.4.0 optree-0.15.0 pennylane-sphinx-theme-0.19.0 pillow-11.2.1 protobuf-5.29.4 pybtex-0.24.0 pybtex-docutils-1.0.3 pygments-github-lexers-0.0.5 pyparsing-3.2.3 python-dateutil-2.9.0.post0 rich-14.0.0 rustworkx-0.16.0 scipy-1.15.2 six-1.17.0 sphinx-8.1.0 sphinx-automodapi-0.13 sphinx-copybutton-0.5.2 sphinx-gallery-0.19.0 sphinxcontrib-bibtex-2.6.3 sphinxext-opengraph-0.9.0 sympy-1.13.1 tensorboard-2.18.0 tensorboard-data-server-0.7.2 tensorflow-cpu-2.18.0 tensorflow-io-gcs-filesystem-0.37.1 tensornetwork-0.3.0 termcolor-3.1.0 tomli-2.0.2 tomlkit-0.13.2 torch-2.5.1 triton-3.1.0 typing-extensions-4.13.2 werkzeug-3.1.3 wrapt-1.17.2 xanadu-sphinx-theme-0.13.0

[rtd-command-info] start-time: 2025-05-08T09:55:47.698814Z, end-time: 2025-05-08T09:55:56.060117Z, duration: 8, exit-code: 0
python -m pip install --upgrade --upgrade-strategy only-if-needed --no-cache-dir .
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Collecting pennylane-lightning>=0.41 (from PennyLane==0.42.0.dev23)
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Collecting scipy-openblas32>=0.3.26 (from pennylane-lightning>=0.41->PennyLane==0.42.0.dev23)
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Building wheels for collected packages: PennyLane
  Building wheel for PennyLane (pyproject.toml): started
  Building wheel for PennyLane (pyproject.toml): finished with status 'done'
  Created wheel for PennyLane: filename=pennylane-0.42.0.dev23-py3-none-any.whl size=2281456 sha256=17f9772af6fb8059d3e49462fa54794f1b371e64e9193833d3f2eefe0594c6ba
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Successfully built PennyLane
Installing collected packages: scipy-openblas32, pennylane-lightning, PennyLane

Successfully installed PennyLane-0.42.0.dev23 pennylane-lightning-0.41.1 scipy-openblas32-0.3.29.0.0

[rtd-command-info] start-time: 2025-05-08T09:55:56.218523Z, end-time: 2025-05-08T09:55:56.362971Z, 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
from datetime import datetime

# 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 = "8.1"

# 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",
    "sphinxext.opengraph",
    "m2r2",
    "sphinx_automodapi.smart_resolver"
]

# Open Graph metadata
ogp_social_cards = {
    "image": "_static/logo.png",
    "enable": True,
    "site_url": "https://docs.pennylane.ai/",
    "line_color": "#03b2ff",
}
ogp_image = "_static/opengraph.png"
numpydoc_show_class_members = False


# The base URL with a proper language and version.
html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "/")

# Tell Jinja2 templates the build is running on Read the Docs
if os.environ.get("READTHEDOCS", "") == "True":
    html_context = {"READTHEDOCS": True}

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 = {
    "demo": ("https://pennylane.ai/qml", None),
    "catalyst": ("https://docs.pennylane.ai/projects/catalyst/en/stable", 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")]
autodoc_mock_imports = ["torch"]

# 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 = f"{datetime.now().year}, 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

pennylane.Hamiltonian = pennylane.ops.op_math.linear_combination.LinearCombination


# 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 = "en"

# 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 = ["robots.txt"]

# 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 = {
    "extra_copyrights": [
        "TensorFlow, the TensorFlow logo, and any related marks are trademarks " "of Google Inc."
    ],
    "google_analytics_tracking_id": "G-C480Z9JL0D",
    "search_on_pennylane_ai": True,
}

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")

[rtd-command-info] start-time: 2025-05-08T09:55:56.424476Z, end-time: 2025-05-08T10:01:45.606379Z, duration: 349, exit-code: 2
python -m sphinx -T -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/html
Running Sphinx v8.1.0
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/transforms/core/transform_dispatcher.py:118: UserWarning: Transforms 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(
Matplotlib is building the font cache; this may take a moment.
loading translations [en]... done
making output directory... done
Converting `source_suffix = '.rst'` to `source_suffix = {'.rst': 'restructuredtext'}`.
checking bibtex cache... out of date
parsing bibtex file /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/bibfile.bib... parsed 0 entries
[autosummary] generating autosummary for: code/qml.rst, code/qml_bose.rst, code/qml_capture.rst, code/qml_compiler.rst, code/qml_concurrency.rst, code/qml_data.rst, code/qml_debugging.rst, code/qml_decomposition.rst, code/qml_devices.rst, code/qml_drawer.rst, ..., releases/changelog-0.41.0.md, releases/changelog-0.41.1.md, releases/changelog-0.5.0.md, releases/changelog-0.6.0.md, releases/changelog-0.6.1.md, releases/changelog-0.7.0.md, releases/changelog-0.8.0.md, releases/changelog-0.8.1.md, releases/changelog-0.9.0.md, releases/changelog-dev.md
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/operation.py:2524: PennyLaneDeprecationWarning: Observable is deprecated and will be removed in v0.43. A generic Operator class should be used instead. If defining an Operator, set the is_hermitian property to True. If checking if an Operator is Hermitian, check the is_hermitian property. 
  warnings.warn(
[autosummary] generating autosummary for: /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.BooleanFn.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CCZ.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CH.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CNOT.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CRX.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CRY.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CRZ.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CRot.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CSWAP.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.CY.rst, ..., /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.vjp.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.construct_batch.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.construct_execution_config.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.construct_tape.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.get_best_diff_method.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.get_transform_program.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.jacobian_products.DeviceDerivatives.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.jacobian_products.DeviceJacobianProducts.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.jacobian_products.JacobianProductCalculator.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.workflow.jacobian_products.TransformJacobianProducts.rst
[autosummary] generating autosummary for: /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.batched_pauli_decompose.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.check_orthonormal.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.orthonormalize.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.pauli_coefficients.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.recursive_cartan_decomp.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.run_opt.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.validate_kak.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.dla.variational_kak_adj.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.resource_estimation.ResourceAdjoint.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/api/pennylane.labs.resource_estimation.ResourceAmplitudeAmplification.rst, ..., /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qaoa.cycle.edges_to_wires.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qaoa.cycle.loss_hamiltonian.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qaoa.cycle.net_flow_constraint.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qaoa.cycle.out_flow_constraint.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qaoa.cycle.wires_to_edges.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.core.transform_dispatcher.TransformContainer.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.core.transform_dispatcher.TransformDispatcher.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.core.transform_program.CotransformCache.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.core.transform_program.TransformProgram.rst, /home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.core.transform_program.null_postprocessing.rst
loading intersphinx inventory 'demo' from https://pennylane.ai/qml/objects.inv ...
loading intersphinx inventory 'catalyst' from https://docs.pennylane.ai/projects/catalyst/en/stable/objects.inv ...
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/transforms/core/transform_dispatcher.py:118: UserWarning: Transforms 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'.
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[automodsumm] code/qml_fermi.rst: found 8 automodsumm entries to generate
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/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/pennylane/operation.py:2524: PennyLaneDeprecationWarning: Observable is deprecated and will be removed in v0.43. A generic Operator class should be used instead. If defining an Operator, set the is_hermitian property to True. If checking if an Operator is Hermitian, check the is_hermitian property. 
  warnings.warn(
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/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.CutStrategy.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.CutStrategy
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.expand_fragment_tape.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.expand_fragment_tape
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.expand_fragment_tapes_mc.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.expand_fragment_tapes_mc
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.find_and_place_cuts.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.find_and_place_cuts
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.fragment_graph.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.fragment_graph
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.graph_to_tape.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.graph_to_tape
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.qcut_processing_fn.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.qcut_processing_fn
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.qcut_processing_fn_mc.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.qcut_processing_fn_mc
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.qcut_processing_fn_sample.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.qcut_processing_fn_sample
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.replace_wire_cut_nodes.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.replace_wire_cut_nodes
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qcut.tape_to_graph.rst: document is referenced in multiple toctrees: ['code/api/pennylane.cut_circuit', 'code/api/pennylane.cut_circuit_mc', 'code/qml_qcut'], selecting: code/qml_qcut <- code/api/pennylane.qcut.tape_to_graph
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.qjit.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_compiler'], selecting: code/qml_compiler <- code/api/pennylane.qjit
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.quantum_monte_carlo.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_transforms'], selecting: code/qml_transforms <- code/api/pennylane.quantum_monte_carlo
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.s_prod.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_ops_op_math'], selecting: code/qml_ops_op_math <- code/api/pennylane.s_prod
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.shadow_expval.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_shadows'], selecting: code/qml_shadows <- code/api/pennylane.shadow_expval
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.specs.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_resource'], selecting: code/qml_resource <- code/api/pennylane.specs
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.sum.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_ops_op_math'], selecting: code/qml_ops_op_math <- code/api/pennylane.sum
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.broadcast_expand.rst: document is referenced in multiple toctrees: ['code/qml_devices', 'code/qml_transforms'], selecting: code/qml_transforms <- code/api/pennylane.transforms.broadcast_expand
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.transforms.split_non_commuting.rst: document is referenced in multiple toctrees: ['code/qml_devices', 'code/qml_transforms'], selecting: code/qml_transforms <- code/api/pennylane.transforms.split_non_commuting
/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/checkouts/latest/doc/code/api/pennylane.vjp.rst: document is referenced in multiple toctrees: ['code/qml', 'code/qml_compiler'], selecting: code/qml_compiler <- code/api/pennylane.vjp
done
preparing documents... failed

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/cmd/build.py", line 514, in build_main
    app.build(args.force_all, args.filenames)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/application.py", line 381, in build
    self.builder.build_update()
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 352, in build_update
    self.build(
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 431, in build
    self.write(docnames, list(updated_docnames), method)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 700, in write
    self.prepare_writing(docnames)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/builders/html/__init__.py", line 430, in prepare_writing
    self.indexer = IndexBuilder(
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/search/__init__.py", line 303, in __init__
    self.lang = lang_class(options)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/search/__init__.py", line 78, in __init__
    self.init(options)
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/sphinx/search/en.py", line 217, in init
    self.stemmer = snowballstemmer.stemmer('porter')
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/snowballstemmer/__init__.py", line 27, in stemmer
    raise KeyError("Stemming algorithm '%s' not found" % lang)
KeyError: "Stemming algorithm 'porter' not found"

Exception occurred:
  File "/home/docs/checkouts/readthedocs.org/user_builds/xanaduai-pennylane/envs/latest/lib/python3.10/site-packages/snowballstemmer/__init__.py", line 27, in stemmer
    raise KeyError("Stemming algorithm '%s' not found" % lang)
KeyError: "Stemming algorithm 'porter' not found"
The full traceback has been saved in /tmp/sphinx-err-3uw3wgak.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!