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Move the import of langchain_text_splitters into chunking.default_chunk_fn #37

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Move the import of langchain_text_splitters into chunking.default_chunk_fn #37

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10 changes: 8 additions & 2 deletions voyageai/chunking.py
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Original file line number Diff line number Diff line change
@@ -1,8 +1,6 @@
from itertools import chain
from typing import Callable, List

from langchain_text_splitters import RecursiveCharacterTextSplitter


DEFAULT_CHUNK_SIZE = 2048
SEPARATORS = [
Expand Down Expand Up @@ -35,6 +33,14 @@ def default_chunk_fn(chunk_size: int = DEFAULT_CHUNK_SIZE) -> Callable[[str], Li
"""
Simple wrapper for LangChain RecursiveCharacterTextSplitter.
"""
try:
from langchain_text_splitters import RecursiveCharacterTextSplitter
except ImportError:
raise ImportError(
"Please install langchain-text-splitters to use the default chunking function: "
"pip install langchain-text-splitters"
)

splitter = RecursiveCharacterTextSplitter(
separators=SEPARATORS,
keep_separator="end",
Expand Down