LangChain - Fundamentals
You want to set up LangChain with OpenAI API. Which environment variable must you set before running your Python code?
You want to set up LangChain with OpenAI API. Which environment variable must you set before running your Python code?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify required API key variable
OpenAI requires the environment variable 'OPENAI_API_KEY' to authenticate requests.Step 2: Check other options
LANGCHAIN_API_KEY and OPENAI_SECRET are incorrect names; PYTHONPATH is unrelated to API keys.Final Answer:
OPENAI_API_KEY -> Option AQuick Check:
OpenAI key variable = OPENAI_API_KEY [OK]
Quick Trick: Set OPENAI_API_KEY to use OpenAI with LangChain [OK]
Common Mistakes:
- Using wrong environment variable names
- Confusing PYTHONPATH with API keys
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