pygambit.gambit.Game.leave_infoset#

Game.leave_infoset(node: Node | str)#

Remove node from its information set, placing it in a new singleton.

If node is the only member of its information set, this is a no-op and the information set (with its label) is unchanged. Otherwise node is placed in a new, unlabeled singleton information set belonging to the same player; the label, if any, stays with the members left in the rump.

Changed in version 17.0.0.

Parameters:

node (Node or str) – The node to move to a new singleton information set.

Raises:

  • MismatchError – If node is a Node from a different game.

  • KeyError – If node is a string and no node in the game has that label.

  • TypeError – If node is neither a Node nor a str.

  • ValueError – If node is an empty string or all whitespace.