pm4py.objects.oc_causal_net.utils.occn_utils module#

PM4Py – A Process Mining Library for Python Copyright (C) 2026 Process Intelligence Solutions GmbH

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see this software project’s root or visit <https://www.gnu.org/licenses/>.

Website: https://processintelligence.solutions Contact: info@processintelligence.solutions

pm4py.objects.oc_causal_net.utils.occn_utils.pre_set(occn, activity: str, object_type: str = None) → Set[source]#

Returns the set of predecessor activities for a given activity in an object-centric causal net. Restricted to predecessors connected using arcs of the specified object type, if provided.

Parameters:

  • occn (OCCausalNet) – The object-centric causal net to query

  • activity (str) – The name of the activity for which to get the predecessors

  • object_type (str, optional) – The object type to restrict the predecessors to (default is None)

Returns:

Set of predecessor activities of the specified object type.

Return type:

Set

pm4py.objects.oc_causal_net.utils.occn_utils.post_set(occn, activity: str, object_type: str = None) → Set[source]#

Returns the set of successor activities for a given activity in an object-centric causal net. Restricted to successors connected using arcs of the specified object type, if provided.

Parameters:

  • occn (OCCausalNet) – The object-centric causal net to query

  • activity (str) – The name of the activity for which to get the successors

  • object_type (str, optional) – The object type to restrict the successors to (default is None)

Returns:

Set of successor activities of the specified object type.

Return type:

Set