'StatusNotOk' object has no attribute 'canonical_code'

[mvds314]

What version of OR-Tools and what language are you using?
Version: 9.12.4544
Language: Python

Which solver are you using
GLOP

What operating system and version?
Windows 11

What did you do?
Set up a problem with mathopt, selected a solver that, apparently, was not suitable for the problem.

What did you expect to see
Proper handling of the exception

What did you see instead?
An additional error raised on on handling of the exception:

'StatusNotOk' object has no attribute 'canonical_code'

model = mathopt.Model(name="getting_started_lp")
x = model.add_variable(lb=-1.0, ub=1.5, name="x")
y = model.add_variable(lb=0.0, ub=1.0, name="y")
z = model.add_binary_variable(name="z")
model.add_linear_constraint(x + y + z <= 1.5)
model.maximize(x + 2 * y + z)
params = mathopt.SolveParameters(enable_output=True)

result = mathopt.solve(model, mathopt.SolverType.GLOP, params=params)
if result.termination.reason != mathopt.TerminationReason.OPTIMAL:
    raise RuntimeError(f"model failed to solve: {result.termination}")

[lperron]

known bug in pybind11_abseil.

[lperron]

StatusNotOk is a absl::Status status converted to exception in pybind11_abseil exception:

• it works on linux
• it simili works on mac but it is not the right parent class
• it does not work on windows at all

[Mizux]

duplicate of:

• MathOpt: python_math_opt_solver_test failed on macOS and Windows #4460