nested_element() — langchain Function Reference

Architecture documentation for the nested_element() function in xml.py from the langchain codebase.

Function python OutputParsing StreamingParsers calls 1 called by 2

Entity Profile

OutputParsing→ StreamingParsers→ nested_element() — langchain Function Reference

Dependency Diagram

graph TD
  c299c424_1e24_5191_e410_3eb80554e7d0["nested_element()"]
  f90cc11a_ee3a_6a74_4781_be7b69a7ed22["xml.py"]
  c299c424_1e24_5191_e410_3eb80554e7d0 -->|defined in| f90cc11a_ee3a_6a74_4781_be7b69a7ed22
  e9426db7_ce58_59db_1f0b_befb5eb1d7ae["parse()"]
  e9426db7_ce58_59db_1f0b_befb5eb1d7ae -->|calls| c299c424_1e24_5191_e410_3eb80554e7d0
  c299c424_1e24_5191_e410_3eb80554e7d0["nested_element()"]
  c299c424_1e24_5191_e410_3eb80554e7d0 -->|calls| c299c424_1e24_5191_e410_3eb80554e7d0
  c299c424_1e24_5191_e410_3eb80554e7d0["nested_element()"]
  c299c424_1e24_5191_e410_3eb80554e7d0 -->|calls| c299c424_1e24_5191_e410_3eb80554e7d0
  style c299c424_1e24_5191_e410_3eb80554e7d0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/output_parsers/xml.py lines 288–300

def nested_element(path: list[str], elem: ET.Element) -> Any:
    """Get nested element from path.

    Args:
        path: The path to the element.
        elem: The element to extract.

    Returns:
        The nested element.
    """
    if len(path) == 0:
        return AddableDict({elem.tag: elem.text})
    return AddableDict({path[0]: [nested_element(path[1:], elem)]})