langchain_core.callbacks.streaming_stdout.StreamingStdOutCallbackHandler

class langchain_core.callbacks.streaming_stdout.StreamingStdOutCallbackHandler[source]

Callback handler for streaming. Only works with LLMs that support streaming.

Attributes

ignore_agent

Whether to ignore agent callbacks.

ignore_chain

Whether to ignore chain callbacks.

ignore_chat_model

Whether to ignore chat model callbacks.

ignore_llm

Whether to ignore LLM callbacks.

ignore_retriever

Whether to ignore retriever callbacks.

ignore_retry

Whether to ignore retry callbacks.

raise_error

run_inline

Methods

__init__()

on_agent_action(action, **kwargs)

Run on agent action.

on_agent_finish(finish, **kwargs)

Run on agent end.

on_chain_end(outputs, **kwargs)

Run when chain ends running.

on_chain_error(error, **kwargs)

Run when chain errors.

on_chain_start(serialized, inputs, **kwargs)

Run when chain starts running.

on_chat_model_start(serialized, messages, ...)

Run when LLM starts running.

on_llm_end(response, **kwargs)

Run when LLM ends running.

on_llm_error(error, **kwargs)

Run when LLM errors.

on_llm_new_token(token, **kwargs)

Run on new LLM token.

on_llm_start(serialized, prompts, **kwargs)

Run when LLM starts running.

on_retriever_end(documents, *, run_id[, ...])

Run when Retriever ends running.

on_retriever_error(error, *, run_id[, ...])

Run when Retriever errors.

on_retriever_start(serialized, query, *, run_id)

Run when Retriever starts running.

on_retry(retry_state, *, run_id[, parent_run_id])

Run on a retry event.

on_text(text, **kwargs)

Run on arbitrary text.

on_tool_end(output, **kwargs)

Run when tool ends running.

on_tool_error(error, **kwargs)

Run when tool errors.

on_tool_start(serialized, input_str, **kwargs)

Run when tool starts running.
__init__()
on_agent_action(action: AgentAction, **kwargs: Any) → Any[source]

Run on agent action.

on_agent_finish(finish: AgentFinish, **kwargs: Any) → None[source]

Run on agent end.

on_chain_end(outputs: Dict[str, Any], **kwargs: Any) → None[source]

Run when chain ends running.

on_chain_error(error: BaseException, **kwargs: Any) → None[source]

Run when chain errors.

on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], **kwargs: Any) → None[source]

Run when chain starts running.

on_chat_model_start(serialized: Dict[str, Any], messages: List[List[BaseMessage]], **kwargs: Any) → None[source]

Run when LLM starts running.

on_llm_end(response: LLMResult, **kwargs: Any) → None[source]

Run when LLM ends running.

on_llm_error(error: BaseException, **kwargs: Any) → None[source]

Run when LLM errors.

on_llm_new_token(token: str, **kwargs: Any) → None[source]

Run on new LLM token. Only available when streaming is enabled.

on_llm_start(serialized: Dict[str, Any], prompts: List[str], **kwargs: Any) → None[source]

Run when LLM starts running.

on_retriever_end(documents: Sequence[Document], *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any

Run when Retriever ends running.

on_retriever_error(error: BaseException, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any

Run when Retriever errors.

on_retriever_start(serialized: Dict[str, Any], query: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → Any

Run when Retriever starts running.

on_retry(retry_state: RetryCallState, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any

Run on a retry event.

on_text(text: str, **kwargs: Any) → None[source]

Run on arbitrary text.

on_tool_end(output: str, **kwargs: Any) → None[source]

Run when tool ends running.

on_tool_error(error: BaseException, **kwargs: Any) → None[source]

Run when tool errors.

on_tool_start(serialized: Dict[str, Any], input_str: str, **kwargs: Any) → None[source]

Run when tool starts running.

Examples using StreamingStdOutCallbackHandler