code for article pfeilbr/langchain-python-playground
learn LangChain (python)
concepts
- Agents - use an LLM to determine which actions to take and in what order. An action can either be using a tool and observing its output, or returning to the user.
the llm is used to select the tool to use
langchain/agents/agent.py - _call method has main logic
langchain/agents/types.py
langchain/agents/mrkl/prompt.py
langchain/agents/**/*prompt.py - these contain all the prompts for different agents
demo
pipenv shell
export OPENAI_API_KEY=...
export SERPAPI_API_KEY=...
jupyter lab
# visit `main.ipynb`
resources
- langchain-python
- LangChain AI Handbook - great resource
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