Files
langchain/libs/community/langchain_community/cross_encoders/fake.py
Harrison Chase 8516a03a02 langchain-community[major]: Upgrade community to pydantic 2 (#26011)
This PR upgrades langchain-community to pydantic 2.


* Most of this PR was auto-generated using code mods with gritql
(https://github.com/eyurtsev/migrate-pydantic/tree/main)
* Subsequently, some code was fixed manually due to accommodate
differences between pydantic 1 and 2

Breaking Changes:

- Use TEXTEMBED_API_KEY and TEXTEMBEB_API_URL for env variables for text
embed integrations:
cbea780492

Other changes:

- Added pydantic_settings as a required dependency for community. This
may be removed if we have enough time to convert the dependency into an
optional one.

---------

Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-09-05 14:07:10 -04:00

19 lines
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Python

from difflib import SequenceMatcher
from typing import List, Tuple
from pydantic import BaseModel
from langchain_community.cross_encoders.base import BaseCrossEncoder
class FakeCrossEncoder(BaseCrossEncoder, BaseModel):
"""Fake cross encoder model."""
def score(self, text_pairs: List[Tuple[str, str]]) -> List[float]:
scores = list(
map(
lambda pair: SequenceMatcher(None, pair[0], pair[1]).ratio(), text_pairs
)
)
return scores