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35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
from typing import List, Optional
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from langchain.docstore.document import Document
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from langchain.document_loaders.base import BaseLoader
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from langchain.utilities.wikipedia import WikipediaAPIWrapper
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class WikipediaLoader(BaseLoader):
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"""Loads a query result from www.wikipedia.org into a list of Documents.
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The hard limit on the number of downloaded Documents is 300 for now.
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Each wiki page represents one Document.
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"""
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def __init__(
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self,
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query: str,
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lang: str = "en",
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load_max_docs: Optional[int] = 100,
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load_all_available_meta: Optional[bool] = False,
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):
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self.query = query
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self.lang = lang
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self.load_max_docs = load_max_docs
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self.load_all_available_meta = load_all_available_meta
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def load(self) -> List[Document]:
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client = WikipediaAPIWrapper(
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lang=self.lang,
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top_k_results=self.load_max_docs,
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load_all_available_meta=self.load_all_available_meta,
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)
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docs = client.load(self.query)
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return docs
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