On Mon, May 12, 2008 at 11:17 AM, Nick Alexander <[EMAIL PROTECTED]> wrote:
>
>
> On 12-May-08, at 11:10 AM, Nathan Dunfield wrote:
> >
> >> Oh, that's annoying, it doesn't display the Cython command line.
> >> Anyway, if you don't give the -p or --embed-positions option to
> >> Cython, then source introspection should *not* work:
> >
> > I cython'd on the command line with the -p option and then setup.py
> > installed.
> >
> > I now get a different error message when I try introspection:
> >
> > sage: import introtest
> > sage: introtest.intro??
> > Error getting source: s must be a string
> >
> > instead of
> >
> > Error getting source: arg is not a module, class, method, function,
> >
> > Does the introtest.pyx file have to copied to somewhere in particular
> > for this to work, or is everything supposed to embedded in the *.so
> > module binary?
>
> It is supposed to be embedded. Could you tell me what
> introtest.intro.__doc__ is? The embedding just includes the file
> info; for example
>
> sage: Integer.__doc__[0:100]
> 'File: sage/rings/integer.pyx (starting at line 241)\n\n The \
> \class{Integer} class represents arbitr'
>
> That shows where the docstring starts in sage/rings/integer.pyx for
> class Integer. There are lots of way that info can be off, or that
> Sage can misparse/not find it. It's somewhat fragile.
I think the problem is that Sage's
foo??
specifically *assumes* that the file refers to a file in the
site-packages directory,
or maybe even in the sage site-packages directory. Thus if somebody just
builds a pyx file somewhere that assumption isn't satisfied.
Anyway Nick, you and I both wrote this, but that was a year ago,
and we'll both going on memory. I think the short answer like you said
is that it should not be guaranteed to work unless the file is listed
in devel/sage/sage/setup.py, and that we'll have to extend the
functionality so it works more generally.
This will require modifications in misc/*.py (for the command line)
and server/support.py (for the notebook).
William
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to sage-devel@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at http://groups.google.com/group/sage-devel
URLs: http://www.sagemath.org
-~----------~----~----~----~------~----~------~--~---
