{"cells": [{"cell_type": "markdown", "id": "f503d3ec", "metadata": {}, "source": ["<a href=\"https://colab.research.google.com/github/jerryjliu/llama_index/blob/main/docs/docs/examples/llm/langchain.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"在 Colab 中打开\"/></a>\n"]}, {"cell_type": "markdown", "id": "343d5ee5-c78d-493d-9df9-2d170dbd71d9", "metadata": {}, "source": ["# LangChain LLM\n"]}, {"cell_type": "code", "execution_count": null, "id": "f8955ebc", "metadata": {}, "outputs": [], "source": ["%pip install llama-index-llms-langchain"]}, {"cell_type": "code", "execution_count": null, "id": "703e0586-723b-4a32-81c3-96c1054a998d", "metadata": {}, "outputs": [], "source": ["from langchain.llms import OpenAI"]}, {"cell_type": "code", "execution_count": null, "id": "911bb011-40b3-44d7-9d99-6a0e8a193753", "metadata": {}, "outputs": [], "source": ["from llama_index.llms.langchain import LangChainLLM"]}, {"cell_type": "code", "execution_count": null, "id": "1470203e-80fd-4013-af89-b2b5ad80a14d", "metadata": {}, "outputs": [], "source": ["llm = LangChainLLM(llm=OpenAI())"]}, {"cell_type": "code", "execution_count": null, "id": "59ae3b49-4f62-4248-b2d8-4ec3ab04f7e4", "metadata": {}, "outputs": [], "source": ["response_gen = llm.stream_complete(\"Hi this is\")"]}, {"cell_type": "code", "execution_count": null, "id": "8cb35c1e-a04b-4526-ad8c-ddf6e37e9fd2", "metadata": {}, "outputs": [{"name": "stdout", "output_type": "stream", "text": [" a test\n", "\n", "Hello! Welcome to the test. What would you like to learn about?"]}], "source": ["for delta in response_gen:\n", "    print(delta.delta, end=\"\")"]}], "metadata": {"kernelspec": {"display_name": "Python 3 (ipykernel)", "language": "python", "name": "python3"}, "language_info": {"codemirror_mode": {"name": "ipython", "version": 3}, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3"}}, "nbformat": 4, "nbformat_minor": 5}