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langchain[patch]: Update import handling in `adapters` (#21079)

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pull/20805/head^2
Eugene Yurtsev 1 month ago committed by GitHub
parent 5c63ac3dd7
commit c8f18a2524
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2 changed files with 64 additions and 40 deletions
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74
libs/langchain/langchain/adapters/openai.py
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@ -1,28 +1,52 @@
import warnings
from langchain_core._api import LangChainDeprecationWarning
from langchain.utils.interactive_env import is_interactive_env
def __getattr__(name: str) -> None:
# If not in interactive env, raise warning.
from langchain_community.adapters import openai
if not is_interactive_env():
warnings.warn(
"Importing from langchain is deprecated. Importing from "
"langchain will no longer be supported as of langchain==0.2.0. "
"Instead of `from langchain.adapters.openai import {name}` "
"Use `from langchain_community.adapters.openai import {name}`."
"To install langchain-community run `pip install -U langchain-community`.",
category=LangChainDeprecationWarning,
)
return getattr(openai, name)
__all__ = [ # noqa: F822
from typing import TYPE_CHECKING, Any
from langchain._api import create_importer
if TYPE_CHECKING:
from langchain_community.adapters.openai import (
Chat,
ChatCompletion,
ChatCompletionChunk,
ChatCompletions,
Choice,
ChoiceChunk,
Completions,
IndexableBaseModel,
chat,
convert_dict_to_message,
convert_message_to_dict,
convert_messages_for_finetuning,
convert_openai_messages,
)
# Create a way to dynamically look up deprecated imports.
# Used to consolidate logic for raising deprecation warnings and
# handling optional imports.
MODULE_LOOKUP = {
"IndexableBaseModel": "langchain_community.adapters.openai",
"Choice": "langchain_community.adapters.openai",
"ChatCompletions": "langchain_community.adapters.openai",
"ChoiceChunk": "langchain_community.adapters.openai",
"ChatCompletionChunk": "langchain_community.adapters.openai",
"convert_dict_to_message": "langchain_community.adapters.openai",
"convert_message_to_dict": "langchain_community.adapters.openai",
"convert_openai_messages": "langchain_community.adapters.openai",
"ChatCompletion": "langchain_community.adapters.openai",
"convert_messages_for_finetuning": "langchain_community.adapters.openai",
"Completions": "langchain_community.adapters.openai",
"Chat": "langchain_community.adapters.openai",
"chat": "langchain_community.adapters.openai",
}
_import_attribute = create_importer(__file__, deprecated_lookups=MODULE_LOOKUP)
def __getattr__(name: str) -> Any:
"""Look up attributes dynamically."""
return _import_attribute(name)
__all__ = [
"IndexableBaseModel",
"Choice",
"ChatCompletions",

30
libs/langchain/scripts/lint_imports.sh
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@ -7,23 +7,23 @@ errors=0
# Check the conditions
git grep '^from langchain import' langchain | grep -vE 'from langchain import (__version__|hub)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/pydantic_v1 | grep -vE 'from langchain.(pydantic_v1)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/load | grep -vE 'from langchain.(pydantic_v1|load)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/utils | grep -vE 'from langchain.(pydantic_v1|utils)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/schema | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|env)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/adapters | grep -vE 'from langchain.(pydantic_v1|utils|schema|load)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/callbacks | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/pydantic_v1 | grep -vE 'from langchain.(pydantic_v1|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/load | grep -vE 'from langchain.(pydantic_v1|load|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/utils | grep -vE 'from langchain.(pydantic_v1|utils|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/schema | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|env|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/adapters | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/callbacks | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|_api)' && errors=$((errors+1))
# TODO: it's probably not amazing so that so many other modules depend on `langchain_community.utilities`, because there can be a lot of imports there
git grep '^from langchain\.' langchain/utilities | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|utilities)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/storage | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|storage|utilities)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/utilities | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|utilities|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/storage | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|storage|utilities|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/prompts | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|prompts|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/output_parsers | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|prompts|_api|output_parsers)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/llms | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|prompts|llms|utilities|globals)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/chat_models | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|llms|prompts|adapters|chat_models|utilities|globals)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/embeddings | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|storage|llms|embeddings|utilities)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/docstore | grep -vE 'from langchain.(pydantic_v1|utils|schema|docstore)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/vectorstores | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|_api|storage|llms|docstore|vectorstores|utilities)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/output_parsers | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|prompts|_api|output_parsers|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/llms | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|prompts|llms|utilities|globals|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/chat_models | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|llms|prompts|adapters|chat_models|utilities|globals|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/embeddings | grep -vE 'from langchain.(pydantic_v1|utils|schema|load|callbacks|env|storage|llms|embeddings|utilities|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/docstore | grep -vE 'from langchain.(pydantic_v1|utils|schema|docstore|_api)' && errors=$((errors+1))
git grep '^from langchain\.' langchain/vectorstores | grep -vE 'from
langchain.(pydantic_v1|utils|schema|load|callbacks|env|_api|storage|llms|docstore|vectorstores|utilities|_api)' && errors=$((errors+1))
# make sure not importing from langchain_experimental
git --no-pager grep '^from langchain_experimental\.' . && errors=$((errors+1))

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