ConstrainedQuadraticModel.add_constraint_from_comparison(comp: dimod.sym.Comparison, label: Optional[Hashable] = None, copy: bool = True) Hashable[source]

Add a constraint from a comparison.

  • comp – A comparison object.

  • label – A label for the constraint. Must be unique. If no label is provided, one is generated using uuid.

  • copy – If True, the model is copied. You can set to False to improve performance, but subsequently mutating the model can cause issues.


Label of the added constraint.


>>> from dimod import ConstrainedQuadraticModel, Integer
>>> i = Integer('i')
>>> cqm = ConstrainedQuadraticModel()
>>> cqm.add_constraint_from_comparison(i <= 3, label='Max i')
'Max i'