#19163: LatticePoset creation: Empty argument, better error reporting
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-7.1
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/latticeposet_creation__empty_argument__better_error_reporting|
a60a36bd61d937ca05ebd2f791f8132368ccb83a
Dependencies: | Stopgaps:
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Comment (by tscrim):
Replying to [comment:27 jmantysalo]:
> Replying to [comment:24 jmantysalo]:
>
> Just pinging for this question:
>
> > But then I guess that `LatticePoset(P)` could say "not a
''semi''lattice", assuming that I don't check the error string. Is that
bad? Not that much, but...?
Well, perhaps just have `x` and `y` be default to `None` in the exception
`__init__`, but it contradicts your docstring for `LatticeError`.
Moreover, I still think you should let that propagate up rather than
creating a completely new error message.
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Ticket URL: <http://trac.sagemath.org/ticket/19163#comment:29>
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