#9128: Sphinx should be aware of all.py to find its links
-----------------------------+----------------------------------------------
   Reporter:  hivert         |          Owner:  hivert        
       Type:  enhancement    |         Status:  needs_review  
   Priority:  major          |      Milestone:  sage-4.7      
  Component:  documentation  |       Keywords:  Sphinx links  
Work_issues:                 |       Upstream:  N/A           
   Reviewer:                 |         Author:  Florent Hivert
     Merged:                 |   Dependencies:                
-----------------------------+----------------------------------------------

Old description:

> Though sphinx is perfectly working with target in the local module he
> isn't
> able to find reference target from other modules even if they are
> exported in
> all.py. For example, if I want to link Parent from anywhere but
> parent.pyx, I
> have to write the full path (ie.
> {{{:class:`~sage.structure.parent.Parent}}}`)
> even if it is imported in my module. I find this extremely annoying
> since, in
> the task of improving the category doc, I'm setting up a lot of huge
> cross
> references such as:
> {{{
>     :meth:`Algebras.ParentMethods.algebra_generators()
> <sage.categories.algebras.Algebras.ParentMethods.algebra_generators>`.
> }}}
> I would be very happy if I had to write only
> {{{
>     :meth:`Algebras.ParentMethods.algebra_generators`
> }}}
> The following patch should solve this issue
>
> I set up {{{intersphinx}}} so that links to Python's doc are correctly
> resolved. The patch
> [attachment:trac_9128-intersphinx_python_database-fh.patch] contains
> Python's
> crossref database downloaded from http://docs.python.org/objects.inv I'm
> also
> using intersphinx to solve links to the reference manual from the other
> documents.
>
> Moreover, I add a reference target to every automatically created
> {{{.rst}}}
> file associated to python source files. It can by used to set-up a link
> toward
> the file. For example {{{:ref:sage.combinat.partition}}} setup a link to
> the
> help page.
>
> I finally setup the extension extlinks to allows links to trac as in
> {{{:trac:`9128`}}}.
>
> Apply both:
>
>  - [attachment:trac_9128-intersphinx_python_database-fh.patch]
>  - [attachment:trac_9128-sphinx_links_all-fh.patch]

New description:

 Though sphinx is perfectly working with target in the local module he
 isn't
 able to find reference target from other modules even if they are exported
 in
 all.py. For example, if I want to link Parent from anywhere but
 parent.pyx, I
 have to write the full path (ie.
 {{{:class:`~sage.structure.parent.Parent}}}`)
 even if it is imported in my module. I find this extremely annoying since,
 in
 the task of improving the category doc, I'm setting up a lot of huge cross
 references such as:
 {{{
     :meth:`Algebras.ParentMethods.algebra_generators()
     <sage.categories.algebras.Algebras.ParentMethods.algebra_generators>`.
 }}}
 I would be very happy if I had to write only
 {{{
     :meth:`Algebras.ParentMethods.algebra_generators`
 }}}
 The following patch should solve this issue

 I set up {{{intersphinx}}} so that links to Python's doc are correctly
 resolved. The patch
 [attachment:trac_9128-intersphinx_python_database-fh.patch] contains
 Python's
 crossref database downloaded from http://docs.python.org/objects.inv I'm
 also
 using intersphinx to solve links to the reference manual from the other
 documents.

 == Extra features ==

 Moreover, I add a reference target to every automatically created
 {{{.rst}}}
 file associated to python source files. It can by used to set-up a link
 toward
 the file and thus get the title rather than the module. For example
 {{{:ref:sage.categories.primer}}} setup a link to the help page with title
 {{{"Elements, parents, and categories in Sage: a (draft of) primer"}}}
 rather
 than
 {{{sage.categories.primer}}} which you get with the link
 {{{:mod:sage.categories.primer}}}.

 I finally setup the extension extlinks to allows links to trac as in
 {{{:trac:`9128`}}}.

 == Depend on: ==

  - #11251

 == Apply both: ==

 Note: order is irrelevant

  - [attachment:trac_9128-intersphinx_python_database-fh.patch]
  - [attachment:trac_9128-sphinx_links_all-fh.patch]

--

Comment(by hivert):

 Hi Andrey,

 Replying to [comment:30 novoselt]:
 > I have enjoyed using your patch in the past and I am going to start
 using it again but so far it does not apply to sage-4.7.rc0:

 Oops !!! I should have said that this depend on #11251. Thanks for
 pointing it out and for testing my patch.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9128#comment:31>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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