app.py

import streamlit as st
from streamlit_chat import message

import openai
from config import open_api_key
openai.api_key = st.secrets["db_username"]

# openAI code
def openai_create(prompt):
    response = openai.Completion.create(
    model="text-davinci-003",
    prompt=prompt,
    temperature=0.9,
    max_tokens=1000,
    top_p=1,
    frequency_penalty=0,
    presence_penalty=0.6,
    stop=[" Human:", " AI:"]
    )
    return response.choices[0].text

# Streamlit App
st.set_page_config(
    page_title="Streamlit Chat - Demo",
    page_icon=":robot:"
)

# st.header("GPT 3.5 with Streamlit\nChatGPT API即将到来")

if 'generated' not in st.session_state:
    st.session_state['generated'] = []

if 'past' not in st.session_state:
    st.session_state['past'] = []


def get_text():
    input_text = st.text_input("You: ", key="input")
    return input_text 


user_input = get_text()


if user_input:
    prompt = 'The following is a conversation with an AI assistant. The assistant is helpful, creative, clever, and very friendly.'
    if st.session_state['generated']:
        for past, generated in zip(st.session_state['past'], st.session_state['generated']):
            if len(generated)>0:
                prompt += f'\nHuman:{past}\nAI:{generated}'
    prompt += f'\nHuman:{user_input}\nAI:'
    logger.info(prompt)
    output = openai_create(prompt)
    logger.info(f'{user_input} -> {output}')
    st.session_state.past.append(user_input)
    st.session_state.generated.append(output)

if st.session_state['generated']:
    for i in range(len(st.session_state['generated'])-1, -1, -1):
        message(st.session_state["generated"][i], key=str(i))
        message(st.session_state['past'][i], is_user=True, key=str(i) + '_user')