Try our new documentation site (beta).


Constr.setAttr()

setAttr ( attrname, newvalue )

Set the value of a constraint attribute. Note that, due to our lazy update approach, the change won't actually take effect until you update the model (using Model.update), optimize the model (using Model.optimize), or write the model to disk (using Model.write).

The full list of available attributes can be found in the Attributes section.

Raises an AttributeError if the specified attribute doesn't exist or can't be set. Raises a GurobiError if there is a problem with the Constr object (e.g., it was removed from the model).

Arguments:

attrname: The attribute being modified.

newvalue: The desired new value of the attribute.

Example usage:

  constr.setAttr(GRB.Attr.RHS, 0.0)
  constr.setAttr("rhs", 0.0)

Try Gurobi for Free

Choose the evaluation license that fits you best, and start working with our Expert Team for technical guidance and support.

Evaluation License
Get a free, full-featured license of the Gurobi Optimizer to experience the performance, support, benchmarking and tuning services we provide as part of our product offering.
Academic License
Gurobi supports the teaching and use of optimization within academic institutions. We offer free, full-featured copies of Gurobi for use in class, and for research.
Cloud Trial

Request free trial hours, so you can see how quickly and easily a model can be solved on the cloud.

Search

Gurobi Optimization