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app.py

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+import gradio as gr
+import os
+os.environ['OPENAI_API_KEY'] = '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'
+os.environ["GOOGLE_CSE_ID"] = "21e6861f3ce974e7c"
+os.environ["GOOGLE_API_KEY"] = "AIzaSyAa3jWvap90TkXd4kwhAHndP_BOVOOjpHg"
+
+from langchain import OpenAI, ConversationChain
+from langchain.prompts import PromptTemplate
+from langchain.embeddings.openai import OpenAIEmbeddings
+from langchain.text_splitter import CharacterTextSplitter
+from langchain.vectorstores.faiss import FAISS
+from langchain.docstore.document import Document
+from langchain.agents import Tool
+from langchain.chains.conversation.memory import ConversationBufferMemory
+from langchain.utilities import GoogleSearchAPIWrapper
+from langchain.agents import initialize_agent
+
+from langchain.chains.conversation.memory import ConversationEntityMemory
+from langchain.chains.conversation.prompt import ENTITY_MEMORY_CONVERSATION_TEMPLATE
+
+from langchain.agents import ZeroShotAgent, Tool, AgentExecutor
+from langchain import SerpAPIWrapper, LLMChain
+
+# ツールの準備
+search = GoogleSearchAPIWrapper()
+tools = [
+    Tool(
+        name = "Current Search",
+        func=search.run,
+        description="Use this allways",
+    ),
+]
+
+# メモリの準備
+memory = ConversationBufferMemory(memory_key="chat_history")
+
+# エージェントの準備
+llm=OpenAI(model_name = "text-davinci-003",temperature=0)
+agent_chain = initialize_agent(
+    tools, 
+    llm, 
+    agent="zero-shot-react-description", 
+    verbose=True, 
+    memory=memory
+)
+
+def chat(message, site,history):
+    history = history or []
+    #siteの//以前を削除
+    site = site.replace("https://","")
+    response = agent_chain.run(input=message+" site:"+site)
+    history.append((message, response))
+
+    return history, history
+
+
+with gr.Blocks() as demo:
+    gr.Markdown("<h3><center>WebSiteChatBotAI</center></h3>")
+    site = gr.Textbox(placeholder="paste URL",label="WebSite")
+    chatbot = gr.Chatbot()
+    with gr.Row():
+        inp = gr.Textbox(placeholder="Question",label =None)
+        btn = gr.Button("Run").style(full_width=False)
+        state = gr.State()
+        agent_state = gr.State()
+        btn.click(chat, [inp,site,state],[chatbot, state])
+if __name__ == '__main__':
+    demo.launch(share=True)

requirements.txt

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+langchain
+openai
+gradio
+requests
+google-api-python-client