deactivating objective without knowing its name

[Marek Makowski]

I've found how to deactivating model objective (I need this use the model as a block with another model defining the objective) without knowing its name:

for component_name, component in m1.component_map().items():
    c_type = str(type(component))
    if str(type(component)) == "<class   'pyomo.core.base.objective.ScalarObjective'>":
       print(f'objective name: "{component_name}" deactivated.')
component.deactivate()

However, the above looks rather ugly. Maybe someone know alternative ways to do this?

Thanks,

Marek

[Siirola, John]

The easiest way is:

 

import pyomo.environ as pyo

 

for obj in m1.component_data_objects(pyo.Objective):

    print(f'objective name: "{obj}" deactivated.')

    obj.deactivate()

 

john

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[Marek Makowski]

Many thanks, John.

I wonder where I could find this (and similar) tip in the Pyomo doc?

Cheers,

Marek