#16210: Bug in is_hamiltonian: wrong exceptions are caught
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Reporter: ncohen | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.2
Component: graph theory | Keywords:
Merged in: | Authors: Nathann Cohen
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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This happens because in `traveling_salesman_problem` the call to
`_scream_is_not_simple` raises a `ValueError` when the graph is not
simple, and the same exception is raised when the graph is not
hamiltonian.
We can use the `EmptySetError` to differentiate them, as we cannot
optimize anything on an empty set.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16210>
Sage <http://www.sagemath.org>
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