Black-ify the sphinx configuration code

docs/source/conf.py

@@ -31,28 +31,26 @@
 # 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.extlinks',
-              'sphinxcontrib.autoprogram',
-              'recommonmark',
-              ]
+extensions = ["sphinx.ext.extlinks", "sphinxcontrib.autoprogram", "recommonmark"]
 
 extlinks = {
-    'issue': ('https://github.com/jupyter/repo2docker/issues/%s', 'Issue #'),
-    'pr': ('https://github.com/jupyter/repo2docker/pull/%s', 'PR #'),
-    'user': ('https://github.com/%s', '@'),
+    "issue": ("https://github.com/jupyter/repo2docker/issues/%s", "Issue #"),
+    "pr": ("https://github.com/jupyter/repo2docker/pull/%s", "PR #"),
+    "user": ("https://github.com/%s", "@"),
 }
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 
 from recommonmark.transform import AutoStructify
 
+
 def setup(app):
-    app.add_stylesheet('custom.css')  # may also be a URL
-    app.add_config_value('recommonmark_config', {
-                'auto_toc_tree_section': 'Contents',
-                }, True)
+    app.add_stylesheet("custom.css")  # may also be a URL
+    app.add_config_value(
+        "recommonmark_config", {"auto_toc_tree_section": "Contents"}, True
+    )
     app.add_transform(AutoStructify)
 
 
@@ -60,15 +58,15 @@ def setup(app):
 # You can specify multiple suffix as a list of string:
 #
 # source_suffix = ['.rst', '.md']
-source_suffix = ['.rst', '.md']
+source_suffix = [".rst", ".md"]
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General information about the project.
-project = 'repo2docker'
-copyright = '2019, Project Jupyter'
-author = 'Project Jupyter'
+project = "repo2docker"
+copyright = "2019, Project Jupyter"
+author = "Project Jupyter"
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -76,18 +74,21 @@ author = 'Project Jupyter'
 #
 # The short X.Y version.
 import repo2docker
+
 version = repo2docker.__version__
 # The full version, including alpha/beta/rc tags.
 release = version
 
 from repo2docker.buildpacks.conda import CondaBuildPack
 
-default_python = CondaBuildPack.major_pythons['3']
+default_python = CondaBuildPack.major_pythons["3"]
 
 rst_prolog = """
 .. |default_python| replace:: **Python {default_python}**
 .. |default_python_version| replace:: {default_python}
-""".format(default_python=default_python)
+""".format(
+    default_python=default_python
+)
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -102,14 +103,14 @@ language = None
 exclude_patterns = []
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = False
 
 # repo2docker Logo
-html_logo = '_static/images/repo2docker.svg'
-html_favicon = '_static/images/favicon.ico'
+html_logo = "_static/images/repo2docker.svg"
+html_favicon = "_static/images/favicon.ico"
 
 # -- Options for HTML output ----------------------------------------------
 
@@ -117,7 +118,8 @@ html_favicon = '_static/images/favicon.ico'
 # a list of builtin themes.
 #
 import alabaster_jupyterhub
-html_theme = 'alabaster_jupyterhub'
+
+html_theme = "alabaster_jupyterhub"
 html_theme_path = [alabaster_jupyterhub.get_html_theme_path()]
 
 # Theme options are theme-specific and customize the look and feel of a theme
@@ -129,13 +131,15 @@ html_theme_path = [alabaster_jupyterhub.get_html_theme_path()]
 # 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']
-html_sidebars = { '**': ['globaltoc.html', 'relations.html', 'sourcelink.html', 'searchbox.html'] }
+html_static_path = ["_static"]
+html_sidebars = {
+    "**": ["globaltoc.html", "relations.html", "sourcelink.html", "searchbox.html"]
+}
 
 # -- Options for HTMLHelp output ------------------------------------------
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'repo2dockerdoc'
+htmlhelp_basename = "repo2dockerdoc"
 
 
 # -- Options for LaTeX output ---------------------------------------------
@@ -144,15 +148,12 @@ 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',
@@ -162,8 +163,13 @@ latex_elements = {
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, 'repo2docker.tex', 'repo2docker Documentation',
-     'Project Jupyter', 'manual'),
+    (
+        master_doc,
+        "repo2docker.tex",
+        "repo2docker Documentation",
+        "Project Jupyter",
+        "manual",
+    )
 ]
 
 
@@ -171,10 +177,7 @@ latex_documents = [
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
-man_pages = [
-    (master_doc, 'repo2docker', 'repo2docker Documentation',
-     [author], 1)
-]
+man_pages = [(master_doc, "repo2docker", "repo2docker Documentation", [author], 1)]
 
 
 # -- Options for Texinfo output -------------------------------------------
@@ -183,13 +186,18 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'repo2docker', 'repo2docker Documentation',
-     author, 'repo2docker', 'One line description of project.',
-     'Miscellaneous'),
+    (
+        master_doc,
+        "repo2docker",
+        "repo2docker Documentation",
+        author,
+        "repo2docker",
+        "One line description of project.",
+        "Miscellaneous",
+    )
 ]
 
 
-
 # -- Options for Epub output ----------------------------------------------
 
 # Bibliographic Dublin Core info.
@@ -208,4 +216,4 @@ epub_copyright = copyright
 # epub_uid = ''
 
 # A list of files that should not be packed into the epub file.
-epub_exclude_files = ['search.html']
+epub_exclude_files = ["search.html"]