Opened 8 years ago
Closed 8 years ago
#16008 closed enhancement (fixed)
inclusion of the ore_algebra within Sage
Reported by:  zimmerma  Owned by:  

Priority:  major  Milestone:  sage6.2 
Component:  packages: optional  Keywords:  gfun Mgfun Ore guessing 
Cc:  mkauers, schilly  Merged in:  
Authors:  Reviewers:  Marc Mezzarobba, Ralf Stephan  
Report Upstream:  N/A  Work issues:  
Branch:  Commit:  
Dependencies:  Stopgaps: 
Description (last modified by )
the group of Manuel Kauers at RISC develops the ore_algebra
package
(http://www.risc.jku.at/research/combinat/software/ore_algebra/index.php) which is similar to the
Maple gfun package (but more powerful since it works in more general rings), and will be extended to
the multivariate case. A small example with version 0.1:
sage: from ore_algebra import * sage: R.<x> = QQ[]; A.<Dx> = OreAlgebra(R) sage: deq = guess([1,1,2,3,5,8,13,21],A) sage: deq (x^2 + x  1)*Dx + 2*x + 1 sage: rec = A(deq).to_S(A2) sage: rec (n  2)*Sn^2 + (n + 2)*Sn + n + 2
New optional spkg: http://www.risc.jku.at/research/combinat/software/ore_algebra/ore_algebra0.1.spkg
Change History (20)
comment:1 Changed 8 years ago by
 Cc rws added
comment:2 Changed 8 years ago by
 Component changed from algebra to packages: optional
 Status changed from new to needs_review
The link is http://www.risc.jku.at/research/combinat/software/ore_algebra/ore_algebra0.1.spkg and it installs out of the box.
comment:3 Changed 8 years ago by
Hmm, what is it that needs review here?
comment:4 Changed 8 years ago by
 Status changed from needs_review to positive_review
Well I thought I can't set both review and positive... but since you reviewed it too, I'll just go ahead. Thanks.
comment:5 Changed 8 years ago by
 Status changed from positive_review to needs_work
I don't understand: ore_algebra
is not included in sage, is it? It is not even an optional package, just an external package that uses sage and happens to be distributed as an spkg...
comment:6 followup: ↓ 7 Changed 8 years ago by
 Status changed from needs_work to needs_review
This ticket is closed when ore_algebra is included as optional package. Any other code you need to use the package should go in another ticket.
comment:7 in reply to: ↑ 6 Changed 8 years ago by
Replying to rws:
This ticket is closed when ore_algebra is included as optional package.
But it isn't, is it?
~/co/sage:develop$ ls build/pkgs/ore* ls: cannot access build/pkgs/ore*: No such file or directory (exit 2) ~/co/sage:develop$ sage optional  grep ore (exit 1)
Or did you forget to attach a branch to this ticket?
comment:8 followup: ↓ 9 Changed 8 years ago by
But why? It's all included in the SPKG and works. Also, the docs state: Note that the toplevel directory inside the tarball is renamed to src before calling the
spkginstall script.
So you really mean that I should provide an spkginstall
script that calls the package's spkginstall
script? Should it overwrite other files in build/... with versions in the provided package itself?
comment:9 in reply to: ↑ 8 Changed 8 years ago by
Replying to rws:
But why? It's all included in the SPKG and works.
Sure, ore_algebra
is available as an spkg. It already was Paul openeed this ticket. So the way I understand the ticket's description is that it is about including ore_algebra
into sage itself (either as a package, or perhaps by making it part of the sage library, if Manuel & co are interested—I know they were considering it at some point, but I don't know how things are standing now). I could understand that you suggest to close the ticket as wontfix if you believe it should just stay an external package, but I don't think the issue is fixed.
comment:10 followup: ↓ 11 Changed 8 years ago by
I do not suggest to close the ticket as wontfix. I never said that. What I expect is that someone sets positive, and since this ticket is in packages:optional
I then expect the release manager to download the SPKG and himself copy the relevant files from that into build/...
as well as providing the src/
as a tarball. BUT the mgt won't notice at all as long it's not positive.
Again, this ticket is in packages:optional
, and that means when closed the package will be optional.
comment:11 in reply to: ↑ 10 Changed 8 years ago by
 Status changed from needs_review to positive_review
Replying to rws:
I do not suggest to close the ticket as wontfix. I never said that. What I expect is that someone sets positive, and since this ticket is in
packages:optional
I then expect the release manager to download the SPKG and himself copy the relevant files from that intobuild/...
as well as providing thesrc/
as a tarball. BUT the mgt won't notice at all as long it's not positive.
Sorry, I never reviewed optional packages before, and I thought the idea was to use the ticket to review that the package worked well once all that was done, not to decide whether to make it an optional package at all. But if positive review only means "yes, this should be an optional package," then I agree with you.
comment:12 Changed 8 years ago by
 Branch set to u/rws/inclusion_of_the_ore_algebra_within_sage
comment:13 Changed 8 years ago by
 Cc mkauers added; rws removed
 Commit set to 002e19f65ba5ccc0a3cc3b92000028d5522324b6
 Reviewers set to Marc Mezzarobba, Ralf Stephan
Thanks. John Cremona clarified the procedure in https://groups.google.com/forum/#!topic/sagedevel/jopuoWO1Fvk
New commits:
002e19f  Trac 16008: copy spkginstall and SPKG.txt into build/pkgs/orealgebra

comment:14 Changed 8 years ago by
Newstyle optional packges must be tar.gz/tar.bz. We can include the existing spkg as optional, but then we don't need anything from the git branch.
comment:15 Changed 8 years ago by
So is there anything missing for this ticket?
comment:16 Changed 8 years ago by
The attached git branch is incomplete and there is no tarball. Is the ticket about updating the legacy spkg or creating a newstyle optional package? I'm confused...
comment:17 Changed 8 years ago by
This is about taking the published SPKG and using it to create an optional package. You said elsewhere that a functional SPKG suffices for optional package creation. I created the branch before I knew that.
comment:18 Changed 8 years ago by
 Branch u/rws/inclusion_of_the_ore_algebra_within_sage deleted
 Cc schilly added
 Commit 002e19f65ba5ccc0a3cc3b92000028d5522324b6 deleted
 Description modified (diff)
Harald: can you mirror it?
comment:19 Changed 8 years ago by
yes, done. ore_algebra is on the servers
comment:20 Changed 8 years ago by
 Resolution set to fixed
 Status changed from positive_review to closed
See also #15714 and the meta ticket #11515. Of course ore_algebra has more in it than just guessing.