create_message() — langchain Function Reference

Architecture documentation for the create_message() function in exceptions.py from the langchain codebase.

Function python LangChainCore MessageInterface called by 1

Entity Profile

LangChainCore→ MessageInterface→ create_message() — langchain Function Reference

Dependency Diagram

graph TD
  b15992ac_1154_1dc9_ebdf_37d385ad5198["create_message()"]
  445b6774_2020_8a8c_b7c7_f5804c232169["exceptions.py"]
  b15992ac_1154_1dc9_ebdf_37d385ad5198 -->|defined in| 445b6774_2020_8a8c_b7c7_f5804c232169
  fce3a01a_3f42_aea4_cfc7_64f82c3763a2["__init__()"]
  fce3a01a_3f42_aea4_cfc7_64f82c3763a2 -->|calls| b15992ac_1154_1dc9_ebdf_37d385ad5198
  style b15992ac_1154_1dc9_ebdf_37d385ad5198 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/exceptions.py lines 88–111

def create_message(*, message: str, error_code: ErrorCode) -> str:
    """Create a message with a link to the LangChain troubleshooting guide.

    Args:
        message: The message to display.
        error_code: The error code to display.

    Returns:
        The full message with the troubleshooting link.

    Example:
        ```python
        create_message(
            message="Failed to parse output",
            error_code=ErrorCode.OUTPUT_PARSING_FAILURE,
        )
        "Failed to parse output. For troubleshooting, visit: ..."
        ```
    """
    return (
        f"{message}\n"
        "For troubleshooting, visit: https://docs.langchain.com/oss/python/langchain"
        f"/errors/{error_code.value} "
    )