Gutenberg
古腾堡计划是一个提供免费电子书的在线图书馆。
本笔记本介绍了如何将 古腾堡 电子书链接加载为文档格式，以便我们后续使用。
from langchain_community.document_loaders import GutenbergLoader
API 参考：GutenbergLoader
loader = GutenbergLoader("https://www.gutenberg.org/cache/epub/69972/pg69972.txt")
data = loader.load()
data[0].page_content[:300]
'The Project Gutenberg eBook of The changed brides, by Emma Dorothy\r\n\n\nEliza Nevitte Southworth\r\n\n\n\r\n\n\nThis eBook is for the use of anyone anywhere in the United States and\r\n\n\nmost other parts of the world at no cost and with almost no restrictions\r\n\n\nwhatsoever. You may copy it, give it away or re-u'
data[0].metadata
{'source': 'https://www.gutenberg.org/cache/epub/69972/pg69972.txt'}