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Use np.ndarray for constraint names

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This commit is contained in:
Alinson S. Xavier
2021-08-09 05:41:01 -05:00
parent 45667ac2e4
commit 9ddda7e1e2
7 changed files with 33 additions and 27 deletions
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4
miplearn/solvers/pyomo/base.py
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@@ -96,7 +96,7 @@ class BasePyomoSolver(InternalSolver):
else:
expr = lhs >= cf.rhs[i]
cl = pe.Constraint(expr=expr, name=name)
self.model.add_component(name, cl)
self.model.add_component(name.decode(), cl)
self._pyomo_solver.add_constraint(cl)
self._cname_to_constr[name] = cl
self._termination_condition = ""
@@ -233,7 +233,7 @@ class BasePyomoSolver(InternalSolver):
_parse_constraint(constr)
return Constraints(
names=_none_if_empty(names),
names=_none_if_empty(np.array(names, dtype="S")),
rhs=_none_if_empty(np.array(rhs, dtype=float)),
senses=_none_if_empty(senses),
lhs=_none_if_empty(lhs),