.. _reference.entry.summary_detail:

:py:attr:`entries[i].summary_detail`
====================================

A dictionary with details about the entry summary.


.. rubric:: Comes from

* /atom10:feed/atom10:entry/atom10:summary
* /atom03:feed/atom03:entry/atom03:summary
* /rss/channel/item/description
* /rss/channel/item/dc:description
* /rdf:RDF/rdf:item/rdf:description
* /rdf:RDF/rdf:item/dc:description


.. seealso::

    * :ref:`reference.entry.summary`


.. _reference.entry.summary_detail.value:

:py:attr:`entries[i].summary_detail.value`
------------------------------------------

Same as :ref:`reference.entry.summary`.

If this contains :abbr:`HTML (HyperText Markup Language)` or :abbr:`XHTML
(Extensible HyperText Markup Language)`, it is :ref:`sanitized
<advanced.sanitization>` by default.

If this contains :abbr:`HTML (HyperText Markup Language)` or :abbr:`XHTML
(Extensible HyperText Markup Language)`, certain (X)HTML elements within this
value may contain relative :abbr:`URI (Uniform Resource Identifier)`\s.  If so,
they are :ref:`resolved according to a set of rules <advanced.base>`.


.. _reference.entry.summary_detail.type:

:py:attr:`entries[i].summary_detail.type`
-----------------------------------------

The content type of the entry summary.

Most likely values for :py:attr:`~entries[i].summary_detail.type`:

* :mimetype:`text/plain`
* :mimetype:`text/html`
* :mimetype:`application/xhtml+xml`

For Atom feeds, the content type is taken from the type attribute, which
defaults to :mimetype:`text/plain` if not specified.  For :abbr:`RSS (Rich Site
Summary)` feeds, the content type is auto-determined by inspecting the content,
and defaults to :mimetype:`text/html`.  Note that this may cause silent data
loss if the value contains plain text with angle brackets.  There is nothing I
can do about this problem; it is a limitation of :abbr:`RSS (Rich Site
Summary)`.

Future enhancement: some versions of :abbr:`RSS (Rich Site Summary)` clearly
specify that certain values default to :mimetype:`text/plain`, and
:program:`Universal Feed Parser` should respect this, but it doesn't yet.


:py:attr:`entries[i].summary_detail.language`
---------------------------------------------

The language of the entry summary.

:py:attr:`~entries[i].summary_detail.language` is supposed to be a language
code, as specified by `RFC 3066`_, but publishers have been known to
publish random values like "English" or "German".  :program:`Universal Feed
Parser` does not do any parsing or normalization of language codes.

.. _RFC 3066: http://www.ietf.org/rfc/rfc3066.txt

:py:attr:`~entries[i].summary_detail.language` may come from the element's
xml:lang attribute, or it may inherit from a parent element's xml:lang, or the
Content-Language :abbr:`HTTP (Hypertext Transfer Protocol)` header.  If the
feed does not specify a language,
:py:attr:`~entries[i].summary_detail.language` will be ``None``, the
:program:`Python` null value.


:py:attr:`entries[i].summary_detail.base`
-----------------------------------------

The original base :abbr:`URI (Uniform Resource Identifier)` for links within
the entry summary.

:py:attr:`~entries[i].summary_detail.base` is only useful in rare situations
and can usually be ignored.  It is the original base :abbr:`URI (Uniform
Resource Identifier)` for this value, as specified by the element's xml:base
attribute, or a parent element's xml:base, or the appropriate :abbr:`HTTP
(Hypertext Transfer Protocol)` header, or the :abbr:`URI (Uniform Resource
Identifier)` of the feed.  (See :ref:`advanced.base` for more details.)  By the
time you see it, :program:`Universal Feed Parser` has already resolved relative
links in all values where it makes sense to do so.  *Clients should never need
to manually resolve relative links.*
