Files
langchain-python/langchain/document_loaders/merge.py
T
Lance Martin 393f469eb3 Create merge loader that combines documents from a set of loaders (#6659)
Simple utility loader that combines documents from a set of specified
loaders.
2023-06-23 13:02:48 -07:00

28 lines
838 B
Python

from typing import Iterator, List
from langchain.docstore.document import Document
from langchain.document_loaders.base import BaseLoader
class MergedDataLoader(BaseLoader):
"""Merge documents from a list of loaders"""
def __init__(self, loaders: List):
"""Initialize with a list of loaders"""
self.loaders = loaders
def lazy_load(self) -> Iterator[Document]:
"""Lazy load docs from each individual loader."""
for loader in self.loaders:
# Check if lazy_load is implemented
try:
data = loader.lazy_load()
except NotImplementedError:
data = loader.load()
for document in data:
yield document
def load(self) -> List[Document]:
"""Load docs."""
return list(self.lazy_load())