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 # EntitySet

 Last update: 16.07.2026 

<a id="compolyx.EntitySet"></a>

### *class* compolyx.EntitySet(graph, obj, parent=None)

Base class for entity sets.

### Attributes

NameDescription[`EntitySet.active`](compolyx.EntitySet.active.md#compolyx.EntitySet.active)Active status of the object.[`EntitySet.enabled`](compolyx.EntitySet.enabled.md#compolyx.EntitySet.enabled)Indicates whether the object is enabled.[`EntitySet.id`](compolyx.EntitySet.id.md#compolyx.EntitySet.id)ID of the object.[`EntitySet.is_dict_item`](compolyx.EntitySet.is_dict_item.md#compolyx.EntitySet.is_dict_item)Indicates whether the object is an item in a dictionary.[`EntitySet.is_list_item`](compolyx.EntitySet.is_list_item.md#compolyx.EntitySet.is_list_item)Indicates whether the object is an item of a list.[`EntitySet.link_path`](compolyx.EntitySet.link_path.md#compolyx.EntitySet.link_path)Root path of the current node in the tree for links to this object.[`EntitySet.name`](compolyx.EntitySet.name.md#compolyx.EntitySet.name)Name of the object.[`EntitySet.parent`](compolyx.EntitySet.parent.md#compolyx.EntitySet.parent)Parent object in the tree.[`EntitySet.root_path`](compolyx.EntitySet.root_path.md#compolyx.EntitySet.root_path)Root path of the current node in the tree.[`EntitySet.size`](compolyx.EntitySet.size.md#compolyx.EntitySet.size)Number of entities.[`EntitySet.status`](compolyx.EntitySet.status.md#compolyx.EntitySet.status)Status of the object.[`EntitySet.status_changed`](compolyx.EntitySet.status_changed.md#compolyx.EntitySet.status_changed)Boolean flag which is set to true in C++ when up-to-date status of object changes.[`EntitySet.uid`](compolyx.EntitySet.uid.md#compolyx.EntitySet.uid)UID of the object.[`EntitySet.vertex`](compolyx.EntitySet.vertex.md#compolyx.EntitySet.vertex)Raises an error if the object has been removed from the graph.### Methods

NameDescription[`EntitySet.add`](compolyx.EntitySet.add.md#compolyx.EntitySet.add)(entity)Add entity to the set.[`EntitySet.clear`](compolyx.EntitySet.clear.md#compolyx.EntitySet.clear)()[`EntitySet.find_parent`](compolyx.EntitySet.find_parent.md#compolyx.EntitySet.find_parent)(type)Steps up the tree and returns the first parent with given type.[`EntitySet.obj_exists`](compolyx.EntitySet.obj_exists.md#compolyx.EntitySet.obj_exists)()Checks if \_\_obj still references the c++ object (has not been reset to None by self.\_delete) and exists in the graph.[`EntitySet.remove`](compolyx.EntitySet.remove.md#compolyx.EntitySet.remove)(entity)Remove entity from the set.[`EntitySet.serialize_name_and_id`](compolyx.EntitySet.serialize_name_and_id.md#compolyx.EntitySet.serialize_name_and_id)()Serializes the name and ID.[`EntitySet.update`](compolyx.EntitySet.update.md#compolyx.EntitySet.update)()[`EntitySet.visit`](compolyx.EntitySet.visit.md#compolyx.EntitySet.visit)(visitor)Walk through the tree and let the visitor perform action on every descendant node.