Hello,
Poseidon is reporting strange doctest failures, for example at
http://patchbot.sagemath.org/log/19619/Ubuntu/14.04/x86_64/3.13.0-66-generic/poseidon/2015-11-26%2011:23:09?short
Here is the error
File "src/sage/graphs/generic_graph.py", line 5585, in
sage.graphs.generic_graph.GenericGraph.edge_disjoint_spanning_trees
Failed example:
[T] = g.edge_disjoint_spanning_trees(1)
Exception raised:
Traceback (most recent call last):
...
File "sage/numerical/backends/generic_backend.pyx", line 1069, in
sage.numerical.backends.generic_backend.default_mip_solver
(build/cythonized/sage/numerical/backends/generic_backend.c:8692)
from sage.numerical.backends.coin_backend import CoinBackend
PackageNotFoundError: the package 'cbc' was not found. You can
install it by running 'sage -i cbc' in a shell
Could the owner stop the patchbot and try to investigate if there is
something wrong? Any lights from people with graphs/cbc knowledge would
be useful as well.
Thanks,
Vincent
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