from django.apps import apps from .migration_base import legacy_app for model in apps.get_app_config('legacy').get_models(): if 'ind_excluido' in [f.name for f in model._meta.fields]: print(model, model.objects.values_list( 'ind_excluido', flat=True).distinct()) legacy_models_without_ind_excluido = [ m for m in legacy_app.models.values() if not any(f.name == 'ind_excluido' for f in m._meta.fields)]