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events

EventBus = _EventBus() module-attribute

__all__ = ['BaseEvent', 'BaseTaskEvent', 'StartTaskEvent', 'FinishTaskEvent', 'BaseActionsSubtaskEvent', 'StartActionsSubtaskEvent', 'FinishActionsSubtaskEvent', 'BasePromptEvent', 'StartPromptEvent', 'FinishPromptEvent', 'StartStructureRunEvent', 'FinishStructureRunEvent', 'BaseChunkEvent', 'TextChunkEvent', 'ActionChunkEvent', 'EventListener', 'StartImageGenerationEvent', 'FinishImageGenerationEvent', 'StartImageQueryEvent', 'FinishImageQueryEvent', 'BaseTextToSpeechEvent', 'StartTextToSpeechEvent', 'FinishTextToSpeechEvent', 'BaseAudioTranscriptionEvent', 'StartAudioTranscriptionEvent', 'FinishAudioTranscriptionEvent', 'EventBus'] module-attribute

ActionChunkEvent

Bases: BaseChunkEvent

Source code in griptape/events/action_chunk_event.py 
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@define
class ActionChunkEvent(BaseChunkEvent):
    partial_input: Optional[str] = field(default=None, kw_only=True, metadata={"serializable": True})
    tag: Optional[str] = field(default=None, kw_only=True, metadata={"serializable": True})
    name: Optional[str] = field(default=None, kw_only=True, metadata={"serializable": True})
    path: Optional[str] = field(default=None, kw_only=True, metadata={"serializable": True})

    def __str__(self) -> str:
        parts = []

        if self.name:
            parts.append(self.name)
            if self.path:
                parts.append(f".{self.path}")
                if self.tag:
                    parts.append(f" ({self.tag})")

        if self.partial_input:
            if parts:
                parts.append(f"\n{self.partial_input}")
            else:
                parts.append(self.partial_input)

        return "".join(parts)

name: Optional[str] = field(default=None, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

partial_input: Optional[str] = field(default=None, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

path: Optional[str] = field(default=None, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

tag: Optional[str] = field(default=None, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

__str__()

Source code in griptape/events/action_chunk_event.py 
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def __str__(self) -> str:
    parts = []

    if self.name:
        parts.append(self.name)
        if self.path:
            parts.append(f".{self.path}")
            if self.tag:
                parts.append(f" ({self.tag})")

    if self.partial_input:
        if parts:
            parts.append(f"\n{self.partial_input}")
        else:
            parts.append(self.partial_input)

    return "".join(parts)

BaseActionsSubtaskEvent

Bases: BaseTaskEvent, ABC

Source code in griptape/events/base_actions_subtask_event.py 
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@define
class BaseActionsSubtaskEvent(BaseTaskEvent, ABC):
    subtask_parent_task_id: Optional[str] = field(kw_only=True, metadata={"serializable": True})
    subtask_thought: Optional[str] = field(kw_only=True, metadata={"serializable": True})
    subtask_actions: Optional[list[dict]] = field(kw_only=True, metadata={"serializable": True})

    @classmethod
    def from_task(cls, task: BaseTask) -> BaseActionsSubtaskEvent:
        from griptape.tasks import ActionsSubtask

        if not isinstance(task, ActionsSubtask):
            raise ValueError("Event must be of instance ActionSubtask.")
        return cls(
            task_id=task.id,
            task_parent_ids=task.parent_ids,
            task_child_ids=task.child_ids,
            task_input=task.input,
            task_output=task.output,
            subtask_parent_task_id=task.origin_task.id,
            subtask_thought=task.thought,
            subtask_actions=task.actions_to_dicts(),
        )

subtask_actions: Optional[list[dict]] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

subtask_parent_task_id: Optional[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

subtask_thought: Optional[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

from_task(task) classmethod

Source code in griptape/events/base_actions_subtask_event.py 
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@classmethod
def from_task(cls, task: BaseTask) -> BaseActionsSubtaskEvent:
    from griptape.tasks import ActionsSubtask

    if not isinstance(task, ActionsSubtask):
        raise ValueError("Event must be of instance ActionSubtask.")
    return cls(
        task_id=task.id,
        task_parent_ids=task.parent_ids,
        task_child_ids=task.child_ids,
        task_input=task.input,
        task_output=task.output,
        subtask_parent_task_id=task.origin_task.id,
        subtask_thought=task.thought,
        subtask_actions=task.actions_to_dicts(),
    )

BaseAudioTranscriptionEvent

Bases: BaseEvent

Source code in griptape/events/base_audio_transcription_event.py 
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class BaseAudioTranscriptionEvent(BaseEvent): ...

BaseChunkEvent

Bases: BaseEvent

Source code in griptape/events/base_chunk_event.py 
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@define
class BaseChunkEvent(BaseEvent):
    index: int = field(default=0, metadata={"serializable": True})

    @abstractmethod
    def __str__(self) -> str: ...

index: int = field(default=0, metadata={'serializable': True}) class-attribute instance-attribute

__str__() abstractmethod

Source code in griptape/events/base_chunk_event.py 
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@abstractmethod
def __str__(self) -> str: ...

BaseEvent

Bases: SerializableMixin, ABC

Source code in griptape/events/base_event.py 
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@define
class BaseEvent(SerializableMixin, ABC):
    id: str = field(default=Factory(lambda: uuid.uuid4().hex), kw_only=True, metadata={"serializable": True})
    timestamp: float = field(default=Factory(lambda: time.time()), kw_only=True, metadata={"serializable": True})
    meta: dict[str, Any] = field(factory=dict, kw_only=True, metadata={"serializable": True})

id: str = field(default=Factory(lambda: uuid.uuid4().hex), kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

meta: dict[str, Any] = field(factory=dict, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

timestamp: float = field(default=Factory(lambda: time.time()), kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

BasePromptEvent

Bases: BaseEvent, ABC

Source code in griptape/events/base_prompt_event.py 
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@define
class BasePromptEvent(BaseEvent, ABC):
    model: str = field(kw_only=True, metadata={"serializable": True})

model: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

BaseTaskEvent

Bases: BaseEvent, ABC

Source code in griptape/events/base_task_event.py 
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@define
class BaseTaskEvent(BaseEvent, ABC):
    task_id: str = field(kw_only=True, metadata={"serializable": True})
    task_parent_ids: list[str] = field(kw_only=True, metadata={"serializable": True})
    task_child_ids: list[str] = field(kw_only=True, metadata={"serializable": True})

    task_input: BaseArtifact = field(kw_only=True, metadata={"serializable": True})
    task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={"serializable": True})

task_child_ids: list[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

task_id: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

task_input: BaseArtifact = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

task_parent_ids: list[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

BaseTextToSpeechEvent

Bases: BaseMediaGenerationEvent, ABC

Source code in griptape/events/base_text_to_speech_event.py 
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@define
class BaseTextToSpeechEvent(BaseMediaGenerationEvent, ABC): ...

EventListener

Bases: Generic[T]

An event listener that listens for events and handles them.

Attributes:

Name Type Description
on_event Optional[Callable[[T], Optional[BaseEvent | dict]]]

The on_event function that will be called when an event is published. The on_event function should accept an event and return either the event or a dictionary. If the on_event returns None, the event will not be published.
event_types Optional[list[type[T]]]

A list of event types that the event listener should listen for. If not provided, the event listener will listen for all event types.
event_listener_driver Optional[BaseEventListenerDriver]

The driver that will be used to publish events.
Source code in griptape/events/event_listener.py 
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@define
class EventListener(Generic[T]):
    """An event listener that listens for events and handles them.

    Attributes:
        on_event: The on_event function that will be called when an event is published.
            The on_event function should accept an event and return either the event or a dictionary.
            If the on_event returns None, the event will not be published.
        event_types: A list of event types that the event listener should listen for.
            If not provided, the event listener will listen for all event types.
        event_listener_driver: The driver that will be used to publish events.
    """

    on_event: Optional[Callable[[T], Optional[BaseEvent | dict]]] = field(default=None)
    event_types: Optional[list[type[T]]] = field(default=None, kw_only=True)
    event_listener_driver: Optional[BaseEventListenerDriver] = field(default=None, kw_only=True)

    def __enter__(self) -> EventListener:
        from griptape.events import EventBus

        EventBus.add_event_listener(self)

        return self

    def __exit__(self, type, value, traceback) -> None:  # noqa: ANN001, A002
        from griptape.events import EventBus

        EventBus.remove_event_listener(self)

    def publish_event(self, event: T, *, flush: bool = False) -> None:
        event_types = self.event_types

        if event_types is None or any(isinstance(event, event_type) for event_type in event_types):
            handled_event = event
            if self.on_event is not None:
                handled_event = self.on_event(event)

            if self.event_listener_driver is not None and handled_event is not None:
                self.event_listener_driver.publish_event(handled_event)

        if self.event_listener_driver is not None and flush:
            self.event_listener_driver.flush_events()

event_listener_driver: Optional[BaseEventListenerDriver] = field(default=None, kw_only=True) class-attribute instance-attribute

event_types: Optional[list[type[T]]] = field(default=None, kw_only=True) class-attribute instance-attribute

on_event: Optional[Callable[[T], Optional[BaseEvent | dict]]] = field(default=None) class-attribute instance-attribute

__enter__()

Source code in griptape/events/event_listener.py 
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def __enter__(self) -> EventListener:
    from griptape.events import EventBus

    EventBus.add_event_listener(self)

    return self

__exit__(type, value, traceback)

Source code in griptape/events/event_listener.py 
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def __exit__(self, type, value, traceback) -> None:  # noqa: ANN001, A002
    from griptape.events import EventBus

    EventBus.remove_event_listener(self)

publish_event(event, *, flush=False)

Source code in griptape/events/event_listener.py 
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def publish_event(self, event: T, *, flush: bool = False) -> None:
    event_types = self.event_types

    if event_types is None or any(isinstance(event, event_type) for event_type in event_types):
        handled_event = event
        if self.on_event is not None:
            handled_event = self.on_event(event)

        if self.event_listener_driver is not None and handled_event is not None:
            self.event_listener_driver.publish_event(handled_event)

    if self.event_listener_driver is not None and flush:
        self.event_listener_driver.flush_events()

FinishActionsSubtaskEvent

Bases: BaseActionsSubtaskEvent

Source code in griptape/events/finish_actions_subtask_event.py 
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@define
class FinishActionsSubtaskEvent(BaseActionsSubtaskEvent): ...

FinishAudioTranscriptionEvent

Bases: BaseAudioTranscriptionEvent

Source code in griptape/events/finish_audio_transcription_event.py 
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class FinishAudioTranscriptionEvent(BaseAudioTranscriptionEvent): ...

FinishImageGenerationEvent

Bases: BaseImageGenerationEvent

Source code in griptape/events/finish_image_generation_event.py 
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@define
class FinishImageGenerationEvent(BaseImageGenerationEvent): ...

FinishImageQueryEvent

Bases: BaseImageQueryEvent

Source code in griptape/events/finish_image_query_event.py 
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@define
class FinishImageQueryEvent(BaseImageQueryEvent):
    result: str = field(kw_only=True, metadata={"serializable": True})

result: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

FinishPromptEvent

Bases: BasePromptEvent

Source code in griptape/events/finish_prompt_event.py 
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@define
class FinishPromptEvent(BasePromptEvent):
    result: str = field(kw_only=True, metadata={"serializable": True})
    input_token_count: Optional[float] = field(kw_only=True, metadata={"serializable": True})
    output_token_count: Optional[float] = field(kw_only=True, metadata={"serializable": True})

input_token_count: Optional[float] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

output_token_count: Optional[float] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

result: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

FinishStructureRunEvent

Bases: BaseEvent

Source code in griptape/events/finish_structure_run_event.py 
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@define
class FinishStructureRunEvent(BaseEvent):
    structure_id: Optional[str] = field(kw_only=True, default=None, metadata={"serializable": True})
    output_task_input: BaseArtifact = field(kw_only=True, metadata={"serializable": True})
    output_task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={"serializable": True})

output_task_input: BaseArtifact = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

output_task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

structure_id: Optional[str] = field(kw_only=True, default=None, metadata={'serializable': True}) class-attribute instance-attribute

FinishTaskEvent

Bases: BaseTaskEvent

Source code in griptape/events/finish_task_event.py 
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@define
class FinishTaskEvent(BaseTaskEvent): ...

FinishTextToSpeechEvent

Bases: BaseTextToSpeechEvent

Source code in griptape/events/finish_text_to_speech_event.py 
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@define
class FinishTextToSpeechEvent(BaseTextToSpeechEvent): ...

StartActionsSubtaskEvent

Bases: BaseActionsSubtaskEvent

Source code in griptape/events/start_actions_subtask_event.py 
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@define
class StartActionsSubtaskEvent(BaseActionsSubtaskEvent): ...

StartAudioTranscriptionEvent

Bases: BaseAudioTranscriptionEvent

Source code in griptape/events/start_audio_transcription_event.py 
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class StartAudioTranscriptionEvent(BaseAudioTranscriptionEvent): ...

StartImageGenerationEvent

Bases: BaseImageGenerationEvent

Source code in griptape/events/start_image_generation_event.py 
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@define
class StartImageGenerationEvent(BaseImageGenerationEvent):
    prompts: list[str] = field(kw_only=True, metadata={"serializable": True})
    negative_prompts: Optional[list[str]] = field(default=None, kw_only=True, metadata={"serializable": True})

negative_prompts: Optional[list[str]] = field(default=None, kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

prompts: list[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

StartImageQueryEvent

Bases: BaseImageQueryEvent

Source code in griptape/events/start_image_query_event.py 
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@define
class StartImageQueryEvent(BaseImageQueryEvent):
    query: str = field(kw_only=True, metadata={"serializable": True})
    images_info: list[str] = field(kw_only=True, metadata={"serializable": True})

images_info: list[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

query: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

StartPromptEvent

Bases: BasePromptEvent

Source code in griptape/events/start_prompt_event.py 
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@define
class StartPromptEvent(BasePromptEvent):
    prompt_stack: PromptStack = field(kw_only=True, metadata={"serializable": True})

prompt_stack: PromptStack = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

StartStructureRunEvent

Bases: BaseEvent

Source code in griptape/events/start_structure_run_event.py 
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@define
class StartStructureRunEvent(BaseEvent):
    structure_id: Optional[str] = field(kw_only=True, default=None, metadata={"serializable": True})
    input_task_input: BaseArtifact = field(kw_only=True, metadata={"serializable": True})
    input_task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={"serializable": True})

input_task_input: BaseArtifact = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

input_task_output: Optional[BaseArtifact] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

structure_id: Optional[str] = field(kw_only=True, default=None, metadata={'serializable': True}) class-attribute instance-attribute

StartTaskEvent

Bases: BaseTaskEvent

Source code in griptape/events/start_task_event.py 
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@define
class StartTaskEvent(BaseTaskEvent): ...

StartTextToSpeechEvent

Bases: BaseTextToSpeechEvent

Source code in griptape/events/start_text_to_speech_event.py 
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@define
class StartTextToSpeechEvent(BaseTextToSpeechEvent):
    prompts: list[str] = field(kw_only=True, metadata={"serializable": True})

prompts: list[str] = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

TextChunkEvent

Bases: BaseChunkEvent

Source code in griptape/events/text_chunk_event.py 
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@define
class TextChunkEvent(BaseChunkEvent):
    token: str = field(kw_only=True, metadata={"serializable": True})

    def __str__(self) -> str:
        return self.token

token: str = field(kw_only=True, metadata={'serializable': True}) class-attribute instance-attribute

__str__()

Source code in griptape/events/text_chunk_event.py 
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def __str__(self) -> str:
    return self.token