ModuleNotFoundError: No module named 'langchain_core.pydantic_v1'
langchain0.2.1版本中pydantic_v1已被移除掉
解决办法
pip install langchain_classic
from langchain_classic.memory import ConversationBufferWindowMemory
学而不思则罔,思而不学则殆!
langchain0.2.1版本中pydantic_v1已被移除掉
pip install langchain_classic
from langchain_classic.memory import ConversationBufferWindowMemory