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config.py — langchain Source File

Architecture documentation for config.py, a python file in the langchain codebase. 15 imports, 0 dependents.

File python CoreAbstractions Serialization 15 imports 14 functions 3 classes

Entity Profile

Dependency Diagram

graph LR
  4d16987d_fe07_22bb_f46d_7daeb24e0367["config.py"]
  a327e534_84f6_5308_58ca_5727d5eda0cf["asyncio"]
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  0c635125_6987_b8b3_7ff7_d60249aecde7["warnings"]
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  69e1d8cc_6173_dcd0_bfdf_2132d8e1ce56["contextlib"]
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  e7c46dc4_ca3a_87ac_156f_0aa3d9b9d3f4["contextvars"]
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  e8ec017e_6c91_4b34_675f_2a96c5aa9be6["langchain_core.callbacks.manager"]
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  81c04601_d095_a27d_4af1_55e771bb2b6b["langchain_core.runnables.utils"]
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  ec9bee24_c773_b0b6_adc6_6ee890d32c05["langchain_core.tracers.langchain"]
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  style 4d16987d_fe07_22bb_f46d_7daeb24e0367 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

"""Configuration utilities for `Runnable` objects."""

from __future__ import annotations

import asyncio

# Cannot move uuid to TYPE_CHECKING as RunnableConfig is used in Pydantic models
import uuid  # noqa: TC003
import warnings
from collections.abc import Awaitable, Callable, Generator, Iterable, Iterator, Sequence
from concurrent.futures import Executor, Future, ThreadPoolExecutor
from contextlib import contextmanager
from contextvars import Context, ContextVar, Token, copy_context
from functools import partial
from typing import (
    TYPE_CHECKING,
    Any,
    ParamSpec,
    TypeVar,
    cast,
)

from langsmith.run_helpers import _set_tracing_context, get_tracing_context
from typing_extensions import TypedDict

from langchain_core.callbacks.manager import AsyncCallbackManager, CallbackManager
from langchain_core.runnables.utils import (
    Input,
    Output,
    accepts_config,
    accepts_run_manager,
)
from langchain_core.tracers.langchain import LangChainTracer

if TYPE_CHECKING:
    from langchain_core.callbacks.base import BaseCallbackManager, Callbacks
    from langchain_core.callbacks.manager import (
        AsyncCallbackManagerForChainRun,
        CallbackManagerForChainRun,
    )
else:
    # Pydantic validates through typed dicts, but
    # the callbacks need forward refs updated
    Callbacks = list | Any | None


class EmptyDict(TypedDict, total=False):
    """Empty dict type."""


class RunnableConfig(TypedDict, total=False):
    """Configuration for a `Runnable`.

    !!! note Custom values

        The `TypedDict` has `total=False` set intentionally to:

        - Allow partial configs to be created and merged together via `merge_configs`
        - Support config propagation from parent to child runnables via
            `var_child_runnable_config` (a `ContextVar` that automatically passes
// ... (573 more lines)

Domain

Subdomains

Functions

Classes

Dependencies

  • asyncio
  • collections.abc
  • concurrent.futures
  • contextlib
  • contextvars
  • functools
  • langchain_core.callbacks.base
  • langchain_core.callbacks.manager
  • langchain_core.runnables.utils
  • langchain_core.tracers.langchain
  • langsmith.run_helpers
  • typing
  • typing_extensions
  • uuid
  • warnings

Source

Frequently Asked Questions

What does config.py do?
config.py is a source file in the langchain codebase, written in python. It belongs to the CoreAbstractions domain, Serialization subdomain.
What functions are defined in config.py?
config.py defines 14 function(s): Callbacks, _set_config_context, acall_func_with_variable_args, call_func_with_variable_args, ensure_config, get_async_callback_manager_for_config, get_callback_manager_for_config, get_config_list, get_executor_for_config, langchain_core, and 4 more.
What does config.py depend on?
config.py imports 15 module(s): asyncio, collections.abc, concurrent.futures, contextlib, contextvars, functools, langchain_core.callbacks.base, langchain_core.callbacks.manager, and 7 more.
Where is config.py in the architecture?
config.py is located at libs/core/langchain_core/runnables/config.py (domain: CoreAbstractions, subdomain: Serialization, directory: libs/core/langchain_core/runnables).

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