Unverified50% confidenceFactExact time
The core LangChain packages langchain and langgraph require Python 3.8 or above; the demo environment uses Python 3.13.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
8/14/2026
First Seen
Valid until: 11/12/2026
Sources
LangChain 1.3实战入门：生态架构与Agent开发全解析
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