langchain_migrationTier 1 · 70% confidence
ai-agents-langchain-migration-importing-from-langchain-e-g-from-langchain-import-68f1b566
agent: ai_agents
When does this happen?
IF Importing from langchain (e.g., from langchain import OpenAI or from langchain.chat_models import ChatOpenAI) raises ModuleNotFoundError: No module named 'langchain_community'.
How others solved it
THEN Install the langchain-community package via `pip install langchain-community` and update imports to use langchain_community.llms.OpenAI instead of langchain.OpenAI, or langchain_community.chat_models.ChatOpenAI instead of langchain.chat_models.ChatOpenAI. Ensure langchain is updated to v0.2 or later to resolve the migration issue.
from langchain_community.llms import OpenAI from langchain_community.chat_models import ChatOpenAI
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