text: #!/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 sys, os, re
  
  # 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 = '1.6'
  
  # 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',
      'edit_on_github',
      'sphinx.ext.graphviz',
      # 'sphinx_gallery.gen_gallery',
      "sphinx.ext.intersphinx",
      "sphinx_automodapi.automodapi",
      'sphinx_copybutton',
      "m2r"
  ]
  
  source_suffix = ['.rst', '.md']
  
  autosummary_generate = True
  autosummary_imported_members = False
  automodapi_toctreedirnm = "code/api"
  automodsumm_inherited_members = 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"
  
  from glob import glob
  import shutil
  import os
  import warnings
  
  # sphinx_gallery_conf = {
  #     # path to your example scripts
  #     'examples_dirs': '../examples',
  #     # path where to save gallery generated examples
  #     'gallery_dirs': 'tutorials',
  #     # build files that start 'pennylane_run'
  #     'filename_pattern': r'pennylane_run',
  #     # first notebook cell in generated Jupyter notebooks
  #     'first_notebook_cell': "%matplotlib inline",
  #     # thumbnail size
  #     'thumbnail_size': (400, 400),
  # }
  
  # Remove warnings that occur when generating the the tutorials
  warnings.filterwarnings("ignore", category=UserWarning, message=r"Matplotlib is currently using agg")
  warnings.filterwarnings("ignore", category=FutureWarning, message=r"Passing \(type, 1\) or '1type' as a synonym of type is deprecated.+")
  warnings.filterwarnings("ignore", category=UserWarning, message=r".+?Compilation using quilc will not be available\.")
  
  # Add any paths that contain templates here, relative to this directory.
  templates_path = ['_templates', 'xanadu_theme']
  
  # The suffix(es) of source filenames.
  # You can specify multiple suffix as a list of string:
  #
  # source_suffix = ['.rst', '.md']
  source_suffix = '.rst'
  
  # The master toctree document.
  master_doc = 'index'
  
  # General information about the project.
  project = 'PennyLane'
  copyright = """\
  Ville Bergholm, Josh Izaac, Maria Schuld, Christian Gogolin, M. Sohaib Alam, Shahnawaz Ahmed,
  Juan Miguel Arrazola, Carsten Blank, Alain Delgado, Soran Jahangiri, Keri McKiernan, Johannes Jakob Meyer,
  Zeyue Niu, Antal Száva, and Nathan Killoran. <br>
  PennyLane: Automatic differentiation of hybrid quantum-classical computations. arXiv:1811.04968, 2018.<br>
  &copy; Copyright 2018-2020, Xanadu Quantum Technologies Inc."""
  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
  
  try:
      import pennylane_qchem
  except ImportError:
      from unittest.mock import MagicMock
  
      class Mock(MagicMock):
          __name__ = 'foo'
          __repr__ = lambda self: __name__
  
          @classmethod
          def __getattr__(cls, name):
              return MagicMock()
  
      MOCK_MODULES = [
          'pennylane_qchem',
          'pennylane_qchem.qchem',
          ]
  
      mock_fn = Mock(__name__='foo')
      mock_fns = {"__all__": list(), "__dir__": list(), "__dict__": dict()}
  
      mock = Mock(**mock_fns)
      for mod_name in MOCK_MODULES:
          sys.modules[mod_name] = mock
  
  # 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.
  #html_theme_path = []
  
  # 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.
  #
  # This is required for the alabaster theme
  # refs: http://alabaster.readthedocs.io/en/latest/installation.html#sidebars
  #html_sidebars = {
  #    '**': [
  #        'about.html',
  #        'navigation.html',
  #        'relations.html',  # needs 'show_related': True theme option to display
  #        'searchbox.html',
  #        'donate.html',
  #    ]
  #}
  html_sidebars = {
      '**' : [
          'logo-text.html',
          'searchbox.html',
          'globaltoc.html',
          # 'sourcelink.html'
      ]
  }
  
  # 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 = 'xanadu_theme'
  html_theme_path = ['.']
  
  # Register the theme as an extension to generate a sitemap.xml
  # extensions.append("guzzle_sphinx_theme")
  
  # xanadu theme options (see theme.conf for more information)
  html_theme_options = {
  
      # Set the path to a special layout to include for the homepage
      # "index_template": "special_index.html",
  
      # Set the name of the project to appear in the left sidebar.
      "project_nav_name": "PennyLane",
  
      # Set your Disqus short name to enable comments
      # "disqus_comments_shortname": "pennylane-1",
  
      # Set you GA account ID to enable tracking
      "google_analytics_account": "UA-130507810-2",
  
      # Path to a touch icon
      "touch_icon": "logo_new.png",
  
      # Specify a base_url used to generate sitemap.xml links. If not
      # specified, then no sitemap will be built.
      # "base_url": ""
  
      # Allow a separate homepage from the master_doc
      # "homepage": "index",
  
      # Allow the project link to be overriden to a custom URL.
      # "projectlink": "http://myproject.url",
  
      "large_toc": True,
      # colors
      "navigation_button": "#19b37b",
      "navigation_button_hover": "#0e714d",
      "toc_caption": "#19b37b",
      "toc_hover": "#19b37b",
      "table_header_bg": "#edf7f4",
      "table_header_border": "#19b37b",
      "download_button": "#19b37b",
      # gallery options
      # "github_repo": "XanaduAI/PennyLane",
      # "gallery_dirs": "tutorials",
  }
  
  edit_on_github_project = 'XanaduAI/pennylane'
  edit_on_github_branch = 'master/doc'
  
  # -- Options for HTMLHelp output ------------------------------------------
  
  # Output file base name for HTML help builder.
  htmlhelp_basename = 'PennyLanedoc'
  
  
  # -- 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'
  
  # inheritance_diagram graphviz attributes
  inheritance_node_attrs = dict(color='lightskyblue1', style='filled')
  
  from directives import UsageDetails, CustomGalleryItemDirective, TitleCardDirective
  
  def setup(app):
      app.add_directive('customgalleryitem', CustomGalleryItemDirective)
      app.add_directive('titlecard', TitleCardDirective)
      app.add_directive("usagedetails", UsageDetails)
      app.add_stylesheet('xanadu_gallery.css')
  