# Available builders

These are the built-in Sphinx builders. More builders can be added by :ref:extensions <extensions>.

The builder's "name" must be given to the -b command-line option of :program:sphinx-build to select a builder.

This is the standard HTML builder. Its output is a directory with HTML files, complete with style sheets and optionally the reST sources. There are quite a few configuration values that customize the output of this builder, see the chapter :ref:html-options for details.

Its name is html.

This builder produces the same output as the standalone HTML builder, but also generates HTML Help support files that allow the Microsoft HTML Help Workshop to compile them into a CHM file.

Its name is htmlhelp.

This builder produces a directory with pickle files containing mostly HTML fragments and TOC information, for use of a web application (or custom postprocessing tool) that doesn't use the standard HTML templates. It also is the format used by the Sphinx Web application.

See :ref:pickle-details for details about the output format.

Its name is pickle. (The old name web still works as well.)

This builder produces a bunch of LaTeX files in the output directory. You have to specify which documents are to be included in which LaTeX files via the :confval:latex_documents configuration value. There are a few configuration values that customize the output of this builder, see the chapter :ref:latex-options for details.

Its name is latex.

This builder produces a text file for each reST file -- this is almost the same as the reST source, but with much of the markup stripped for better readability.

Its name is text.

This builder produces an HTML overview of all :dir:versionadded, :dir:versionchanged and :dir:deprecated directives for the current :confval:version. This is useful to generate a ChangeLog file, for example.

Its name is changes.

This builder scans all documents for external links, tries to open them with :mod:urllib2, and writes an overview which ones are broken and redirected to standard output and to :file:output.txt in the output directory.

Built-in Sphinx extensions that offer more builders are:

## Pickle builder details

The builder outputs one pickle file per source file, and a few special files. It also copies the reST source files in the directory _sources under the output directory.

The files per source file have the extensions .fpickle, and are arranged in directories just as the source files are. They unpickle to a dictionary with these keys:

body
The HTML "body" (that is, the HTML rendering of the source file), as rendered by the HTML translator.
title
The title of the document, as HTML (may contain markup).
toc
display_toc
A boolean that is True if the toc contains more than one entry.
current_page_name
The document name of the current file.
parents, prev and next
Information about related chapters in the TOC tree. Each relation is a dictionary with the keys link (HREF for the relation) and title (title of the related document, as HTML). parents is a list of relations, while prev and next are a single relation.
sourcename
The name of the source file under _sources.

The special files are located in the root output directory. They are:

environment.pickle
The build environment. (XXX add important environment properties)
globalcontext.pickle

A pickled dict with these keys:

The same values as given in the configuration file.
style, use_modindex
:confval:html_style and :confval:html_use_modindex, respectively.
last_updated
Date of last build.
builder
Name of the used builder, in the case of pickles this is always 'pickle'.
titles
A dictionary of all documents' titles, as HTML strings.
searchindex.pickle

An index that can be used for searching the documentation. It is a pickled list with these entries:

• A list of indexed docnames.
• A list of document titles, as HTML strings, in the same order as the first list.
• A dict mapping word roots (processed by an English-language stemmer) to a list of integers, which are indices into the first list.