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import os | |
from langchain.chains import LLMChain | |
from langchain_core.prompts import ( | |
ChatPromptTemplate, | |
HumanMessagePromptTemplate, | |
MessagesPlaceholder, | |
) | |
from langchain_core.messages import SystemMessage | |
from langchain.chains.conversation.memory import ConversationBufferWindowMemory | |
from langchain_groq import ChatGroq | |
# Get Groq API key | |
groq_api_key = os.getenv("apikey") | |
groq_chat = ChatGroq(groq_api_key=groq_api_key, model_name="llama3-70b-8192") | |
system_prompt = "あなたは便利なアシスタントです。" | |
conversational_memory_length = 5 | |
memory = ConversationBufferWindowMemory( | |
k=conversational_memory_length, memory_key="chat_history", return_messages=True | |
) | |
while True: | |
user_question = input("質問を入力してください: ") | |
if user_question.lower() == "exit": | |
print("Goodbye!") | |
break | |
if user_question: | |
# Construct a chat prompt template using various components | |
prompt = ChatPromptTemplate.from_messages( | |
[ | |
# 毎回必ず含まれるSystemプロンプトを追加 | |
SystemMessage(content=system_prompt), | |
# ConversationBufferWindowMemoryをプロンプトに追加 | |
MessagesPlaceholder(variable_name="chat_history"), | |
# ユーザーの入力をプロンプトに追加 | |
HumanMessagePromptTemplate.from_template("{human_input}"), | |
] | |
) | |
conversation = LLMChain( | |
llm=groq_chat, | |
prompt=prompt, | |
verbose=False, | |
memory=memory, | |
) | |
response = conversation.predict(human_input=user_question) | |
print("User: ", user_question) | |
print("Assistant:", response) |