#17181 closed defect (fixed)
Poset.__repr__ should mention the linear extension
| Reported by: | ncohen | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | sage-6.4 |
| Component: | combinatorics | Keywords: | |
| Cc: | hivert, nthiery, nborie, VivianePons, chapoton, aschilling, stumpc5, jmantysalo, tscrim, jhpalmieri | Merged in: | |
| Authors: | Nathann Cohen | Reviewers: | Nicolas M. Thiéry |
| Report Upstream: | N/A | Work issues: | |
| Branch: | 8ec394b (Commits) | Commit: | |
| Dependencies: | #14019 | Stopgaps: |
Description
Hello everybody !
A poset with embedded linear extension can never be equal to a "simple poset", and users are bound to wonder someday why two apparently equal posets are not detected as such.
With this branch, this:
sage: Poset(digraphs.Path(5),linear_extension=True) Finite poset containing 5 elements
becomes
sage: Poset(digraphs.Path(5),linear_extension=True) Finite poset containing 5 elements with embedded linear extension
So that it is clearer that the Poset is 'not only a poset'.
Change History (8)
comment:1 Changed 6 years ago by
- Branch set to u/ncohen/17181
- Dependencies set to #14019
- Status changed from new to needs_review
comment:2 Changed 6 years ago by
- Commit set to db2ce313d76bc48a890b19780dd4da01580ec055
comment:3 Changed 6 years ago by
Sounds good to me, thanks! I would just suggest "distinguished" rather than "embedded", since we use that term in similar situations.
The doctest updates raise the question of whether the use of a poset with a linear extension was voluntary or accidental in a couple places (e.g. in the polyhedra code). But fixing those accidental uses can be in a separate ticket.
Modulo this, and assuming that all tests pass, you can set a positive review on my behalf.
Cheers,
Nicolas
comment:4 Changed 6 years ago by
- Commit changed from db2ce313d76bc48a890b19780dd4da01580ec055 to 8ec394bed9a5cbd95d3ed4edb7923994af3fb86a
Branch pushed to git repo; I updated commit sha1. New commits:
| 8ec394b | trac #17181: Reviewer's remarks
|
comment:5 Changed 6 years ago by
- Reviewers set to Nicolas Thiery
- Status changed from needs_review to positive_review
comment:6 Changed 6 years ago by
- Branch changed from u/ncohen/17181 to 8ec394bed9a5cbd95d3ed4edb7923994af3fb86a
- Resolution set to fixed
- Status changed from positive_review to closed
comment:7 Changed 6 years ago by
- Commit 8ec394bed9a5cbd95d3ed4edb7923994af3fb86a deleted
- Reviewers changed from Nicolas Thiery to Nicolas Thiéry
Nathann, I thought you knew about accent aigu! ;-) (Actually, I live in perpetual fear of forgetting one somewhere important - it must be even more gauche than forgetting an umlaut in German...)
comment:8 Changed 6 years ago by
- Reviewers changed from Nicolas Thiéry to Nicolas M. Thiéry
Branch pushed to git repo; I updated commit sha1. Last 10 new commits:
revert remove of iterator() and list()Merge remote-tracking branch 'origin/develop' into depr_funcdeprecate compact argumentMerge branch 'u/aapitzsch/ticket/16933' of trac.sagemath.org:sage into public/combinat/poset/fix_equality-14019trac #14019: rename _linear_extension to _carries_linear_extensionrenamed _carries_linear_extension to _with_linear_extensionMerge branch 'public/combinat/poset/fix_equality-14019' of trac.sagemath.org:sage into public/combinat/poset/fix_equality-14019Fixing documentation and references.trac #14019: Merged with beta6trac #17181: Poset.__repr__ should mention the linear extension