Version Notice

(fallback-model-updated preview) This documentation is ahead of the last release by 37 commits. You may see documentation for features not yet supported in the latest release v0.1.3 (2025-04-18).

pydantic_graph.exceptions

GraphSetupError

Bases: TypeError

Error caused by an incorrectly configured graph.

Source code in pydantic_graph/pydantic_graph/exceptions.py

class GraphSetupError(TypeError):
    """Error caused by an incorrectly configured graph."""

    message: str
    """Description of the mistake."""

    def __init__(self, message: str):
        self.message = message
        super().__init__(message)

message instance-attribute

message: str = message

Description of the mistake.

GraphRuntimeError

Bases: RuntimeError

Error caused by an issue during graph execution.

Source code in pydantic_graph/pydantic_graph/exceptions.py

class GraphRuntimeError(RuntimeError):
    """Error caused by an issue during graph execution."""

    message: str
    """The error message."""

    def __init__(self, message: str):
        self.message = message
        super().__init__(message)

message instance-attribute

message: str = message

The error message.