remove_node() — langchain Function Reference

Architecture documentation for the remove_node() function in graph.py from the langchain codebase.

Function python LangChainCore Runnables called by 2

Entity Profile

LangChainCore→ Runnables→ remove_node() — langchain Function Reference

Dependency Diagram

graph TD
  1eb728cf_7631_9204_a3a2_e3d486989562["remove_node()"]
  646f3bb5_a594_563e_cfbf_e18bdc9efb90["Graph"]
  1eb728cf_7631_9204_a3a2_e3d486989562 -->|defined in| 646f3bb5_a594_563e_cfbf_e18bdc9efb90
  600fa640_4465_baee_3ef3_0c1fda5bf94b["trim_first_node()"]
  600fa640_4465_baee_3ef3_0c1fda5bf94b -->|calls| 1eb728cf_7631_9204_a3a2_e3d486989562
  5ce5505c_4a08_f190_13f7_65b75fa4fde9["trim_last_node()"]
  5ce5505c_4a08_f190_13f7_65b75fa4fde9 -->|calls| 1eb728cf_7631_9204_a3a2_e3d486989562
  style 1eb728cf_7631_9204_a3a2_e3d486989562 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/graph.py lines 340–349

    def remove_node(self, node: Node) -> None:
        """Remove a node from the graph and all edges connected to it.

        Args:
            node: The node to remove.
        """
        self.nodes.pop(node.id)
        self.edges = [
            edge for edge in self.edges if node.id not in {edge.source, edge.target}
        ]