#14019: equality is broken for Posets
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Reporter: ncohen | Owner: sage-combinat
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: posets | Merged in:
Authors: Travis Scrimshaw, | Reviewers: Travis Scrimshaw,
Anne Schilling | Anne Schilling
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/combinat/poset/fix_equality-14019|
c5c6a0c6c0cc48a2ce6a89652aaccb48b35b987a
Dependencies: #17059 | Stopgaps: #14185
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Comment (by ncohen):
> No, `self._list` are wrapped elements (if not a facade), whereas
`self._elements` are always the unwrapped elements, and we always want to
label the digraph by the unwrapped elements.
Okay. Do you have any objections if later the following variables are
renamed
- `_list` -> `_linear_extension_of_wrapped_elements`
- `_elements` -> `_linear_extension_of_unwrapped_elements`
By the way, what would you think in this ticket of renaming the
`linear_extension` parameter you added ? The name does not sound at all
like it is a boolean variable, and you create a `Poset._linear_extension`
variable which is boolean. If you renamed it to
`Poset._carries_linear_extension` or something (whose name sounds like a
boolean variable) we could rename `_list` to `_linear_extension` and
`_elements` to `_linear_extension_unwrapped_elements` (which I think is
better/shorter).
The thing is that if we have to rename `linear_extension` later we will
have to deprecate it --> loss of time.
Nathann
--
Ticket URL: <http://trac.sagemath.org/ticket/14019#comment:79>
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