This section is a brief introduction to reStructuredText (reST) concepts and syntax, intended to provide authors with enough information to author documents productively. Since reST was designed to be a simple, unobtrusive markup language, this will not take too long.
See also
The authoritative reStructuredText User Documentation.
The paragraph is the most basic block in a reST document. Paragraphs are simply chunks of text separated by one or more blank lines. As in Python, indentation is significant in reST, so all lines of the same paragraph must be left-aligned to the same level of indentation.
The standard reST inline markup is quite simple: use
If asterisks or backquotes appear in running text and could be confused with inline markup delimiters, they have to be escaped with a backslash.
Be aware of some restrictions of this markup:
These restrictions may be lifted in future versions of the docutils.
reST also allows for custom “interpreted text roles”’, which signify that the enclosed text should be interpreted in a specific way. Sphinx uses this to provide semantic markup and cross-referencing of identifiers, as described in the appropriate section. The general syntax is :rolename:`content`.
List markup is natural: just place an asterisk at the start of a paragraph and indent properly. The same goes for numbered lists; they can also be autonumbered using a # sign:
* This is a bulleted list.
* It has two items, the second
item uses two lines.
1. This is a numbered list.
2. It has two items too.
#. This is a numbered list.
#. It has two items too.
Nested lists are possible, but be aware that they must be separated from the parent list items by blank lines:
* this is
* a list
* with a nested list
* and some subitems
* and here the parent list continues
Definition lists are created as follows:
term (up to a line of text)
Definition of the term, which must be indented
and can even consist of multiple paragraphs
next term
Description.
Paragraphs are quoted by just indenting them more than the surrounding paragraphs.
Literal code blocks are introduced by ending a paragraph with the special marker ::. The literal block must be indented:
This is a normal text paragraph. The next paragraph is a code sample::
It is not processed in any way, except
that the indentation is removed.
It can span multiple lines.
This is a normal text paragraph again.
The handling of the :: marker is smart:
That way, the second sentence in the above example’s first paragraph would be rendered as “The next paragraph is a code sample:”.
Use `Link text <http://target>`_ for inline web links. If the link text should be the web address, you don’t need special markup at all, the parser finds links and mail addresses in ordinary text.
Internal linking is done via a special reST role, see the section on specific markup, Cross-linking markup.
Section headers are created by underlining (and optionally overlining) the section title with a punctuation character, at least as long as the text:
=================
This is a heading
=================
Normally, there are no heading levels assigned to certain characters as the structure is determined from the succession of headings. However, for the Python documentation, we use this convention:
“Explicit markup” is used in reST for most constructs that need special handling, such as footnotes, specially-highlighted paragraphs, comments, and generic directives.
An explicit markup block begins with a line starting with .. followed by whitespace and is terminated by the next paragraph at the same level of indentation. (There needs to be a blank line between explicit markup and normal paragraphs. This may all sound a bit complicated, but it is intuitive enough when you write it.)
A directive is a generic block of explicit markup. Besides roles, it is one of the extension mechanisms of reST, and Sphinx makes heavy use of it.
Basically, a directive consists of a name, arguments, options and content. (Keep this terminology in mind, it is used in the next chapter describing custom directives.) Looking at this example,
.. function:: foo(x)
foo(y, z)
:bar: no
Return a line of text input from the user.
function is the directive name. It is given two arguments here, the remainder of the first line and the second line, as well as one option bar (as you can see, options are given in the lines immediately following the arguments and indicated by the colons).
The directive content follows after a blank line and is indented relative to the directive start.
For footnotes, use [#]_ to mark the footnote location, and add the footnote body at the bottom of the document after a “Footnotes” rubric heading, like so:
Lorem ipsum [#]_ dolor sit amet ... [#]_
.. rubric:: Footnotes
.. [#] Text of the first footnote.
.. [#] Text of the second footnote.
You can also explicitly number the footnotes for better context.
Every explicit markup block which isn’t a valid markup construct (like the footnotes above) is regarded as a comment.
Since the easiest way to include special characters like em dashes or copyright signs in reST is to directly write them as Unicode characters, one has to specify an encoding:
All Python documentation source files must be in UTF-8 encoding, and the HTML documents written from them will be in that encoding as well.
There are some problems one commonly runs into while authoring reST documents: