pygambit.gambit.Game.set_infoset#

Game.set_infoset(node: Node | str, infoset: Infoset | str) → None#

Place node in the information set infoset.

node must be a decision node with the same action labels as infoset in the same order If node already belongs to infoset, this is a no-op.

Changed in version 17.0.0: Two new requirements are now enforced:

  • node must have the same actions as infoset: the same labels in the same order (previously only the number of actions was checked);

  • node must be a personal decision node. Setting the information set of a terminal node or a chance node now raises.

Parameters:

  • node (Node or str) – The node to place in the information set.

  • infoset (Infoset or str) – The information set to join.

Raises:

  • MismatchError – If node or infoset is from a different game.

  • KeyError – If node or infoset is a string matching no node or information set in the game.

  • TypeError – If node or infoset is not an accepted type.

  • UndefinedOperationError – If node is a terminal node or a chance node.

  • ValueError – If node’s actions do not match infoset’s, with the same labels in the same order.