fromlangchain.schemaimportBaseMemoryfromtypingimportList,Dict,AnyclassRecentKConversationMemory(BaseMemory):"""保存最近5轮对话中JSON文件特定键值的记忆类"""# 定义用来保存最近对话的列表,默认为空recent_conversations:list= []# 定义用来筛选添加到prompt中的实体信息的key,默认为"recent_conversations"memory_key...
LangChain provides many tools, but the most used ones are Prompt Engineering, Data Loaders and Evaluators. When it comes to Prompt Engineering, LangChain contains utilities to develop good prompts, which are very important in getting the best responses from language models. If you want to load ...
# Create a virtual environmentpython -m venv langchain-env# Activate the virtual environment# On Windows:langchain-env\Scripts\activate# On macOS/Linux:source langchain-env/bin/activate Then, you'll need to install the latest LangChain packages: # Install required packagespip install langchain o...
You should consider upgrading via the '/Users/jacoblee/.pyenv/versions/3.10.5/bin/python -m pip install --upgrade pip' command.[0m[33m[0mNote: you may need to restart the kernel to use updated packages.from langchain_anthropic import ChatAnthropicfrom langchain_core.prompts import ...
langchain-mongodb: Python package to use MongoDB features in LangChain langchain-openai: Python package to use OpenAI models via LangChain 1 ! pip install -qU datasets pymongo langchain langgraph langchain-mongodb langchain-openai Step 2: Set up prerequisites We will use OpenAI as the embedd...
In this step-by-step tutorial, you'll learn how to make a Discord bot in Python and interact with several APIs. You'll learn how to handle events, accept commands, validate and verify input, and all the basics that can help you create useful and exciting
npm i langchain @langchain/core (For non-npm examples,see the LangChain JS introductionon their website.) Next,install the integrationsyou want to use. This will be the LLMs you’ll leverage in your app. For example, to installsupport for OpenAI, run: ...
You must install JavaScript frameworks if you need to install JavaScript locally. The frameworks can be Node.JS,React.JS, Vue.JS, etc. When it comes to Node.JS, it plays a key role in web application development. It allows you to create robust and server-side JavaScript applications. You...
Install python-dotenv and langchain: To easily manage environment variables with a .env file, we'll use the python-dotenv package. At the same time, let's also install langchain. Install both packages using pip: pip install python-dotenv langchain Create a .env file: Create a .env file...
python -m venv .venv source .venv/bin/activate pip install . Or, if using uv: uv sync source .venv/bin/activate The sample can then be executed with: python -m langchain_response_tracing "Give me information on John Smith" Usage Usage: python -m langchain_response_tracing [OPTIONS] PR...