langchain 课程笔记

您可以在以下地址找到langchain的课程笔记：https://learn.deeplearning.ai/langchain-chat-with-your-data/lesson/1/introduction [1。在开始之前，您需要创建一个名为langchain的虚拟环境，并安装langchain和openai的包。首先，使用以下命令创建虚拟环境：conda create -n langchain python。然后激活该虚拟环境：conda activate langchain。接下来，安装langchain和openai的包：pip install langchain和pip install openai -i https://pypi.tuna.tsinghua.edu.cn/simple [2。在笔记中，您还需要调用llm的api。您可以使用以下代码进行调用：

from langchain.agents import load_tools
from langchain.agents import initialize_agent
from langchain.agents import AgentType
from langchain.llms import OpenAI
from langchain.chat_models import ChatOpenAI
from langchain.chains.conversation.memory import ConversationBufferWindowMemory

OPENAI_API_KEY = '***********'
llm = ChatOpenAI(openai_api_key=OPENAI_API_KEY, temperature=0, model_name="gpt-3.5-turbo") [3。

通过这些步骤，您将能够开始学习langchain课程并使用llm的api进行聊天。祝您学习愉快！<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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