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langchain: Import from langchain_core in langchain.smith to avoid deprecation warning (#18129)

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Avoids deprecation warning that triggered at import time, e.g. with
`python -c 'import langchain.smith'`


/opt/venv/lib/python3.12/site-packages/langchain/callbacks/__init__.py:37:
LangChainDeprecationWarning: Importing this callback from langchain is
deprecated. Importing it from langchain will no longer be supported as
of langchain==0.2.0. Please import from langchain-community instead:

    `from langchain_community.callbacks import base`.

To install langchain-community run `pip install -U langchain-community`.
This commit is contained in:
Simon Schmidt 2024-02-26 15:14:10 +00:00 committed by GitHub
parent 9147a437f1
commit 2716d58603
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1 changed files with 1 additions and 2 deletions
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3
libs/langchain/langchain/smith/evaluation/progress.py
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@ -4,11 +4,10 @@ import threading
from typing import Any, Dict, Optional, Sequence
from uuid import UUID
from langchain_core.callbacks import base as base_callbacks
from langchain_core.documents import Document
from langchain_core.outputs import LLMResult
from langchain.callbacks import base as base_callbacks
class ProgressBarCallback(base_callbacks.BaseCallbackHandler):
"""A simple progress bar for the console."""