app.py

import os
import json
from datetime import datetime

import gradio as gr
from openai import OpenAI


def print_now(msg):
    now = datetime.now()
    formatted_time = now.strftime("%Y-%m-%d %H:%M:%S.%f")
    print(f"{msg}:{formatted_time}")
    return formatted_time

def respond(
    message,
    history: list[tuple[str, str]],
    system_message,
    max_tokens,
    temperature,
    top_p,
):
    try:
        default_system ="You are Tencent's helpful AI assistant Hunyuan."

        messages = [{"Role": "system", "Content": default_system}]
        client = OpenAI(
            api_key=os.getenv('HUNYUAN_API_KEY'),
            base_url="https://api.hunyuan.cloud.tencent.com/v1",
        )
        for val in history:
            if val[0] and val[1]:
                messages.append({"Role": "user", "Content": val[0]})
                messages.append({"Role": "assistant", "Content": val[1]})
        
        messages.append({"Role": "user", "Content": message})
        completion = client.chat.completions.create(
            model="hunyuan-t1-latest",
            messages=messages,
            stream=True,
            extra_body={
            "stream_moderation": True,
            "enable_enhancement": False,
            }
        )
        response = ""
        is_reasoning_start = True
        is_reasoning_end = True
        

        for event in completion:
            if hasattr(event.choices[0].delta, 'reasoning_content'):
                if is_reasoning_start:
                    response += '> **开始思考**\n\n'
                    is_reasoning_start = False
                token = event.choices[0].delta.reasoning_content
            else:
                if is_reasoning_end:
                    response += '> **结束思考**\n\n'
                    is_reasoning_end = False
                token = event.choices[0].delta.content
            yield response
    except Exception as e:
        raise gr.Error(f"发生错误: {str(e)}")

example_prompts = [
    ["How to cook Kung Pao chicken the tastiest?"],
    ["Help me create an email expressing my greetings to an old friend."],
    ["写一篇关于青春的五言绝句"],
    ["一枚反面朝上的硬币，被翻转了15下后，它的上面是正面，这个说法正确吗?"]
]
latex_delimiters = [
    {"left": "$$", "right": "$$", "display": True},
    {"left": "\\[", "right": "\\]", "display": True},{"left": "$", "right": "$", "display": False},
    {"left": "\\(", "right": "\\)", "display": False}
]


chatbot = gr.Chatbot(latex_delimiters=latex_delimiters, scale=9)

demo = gr.ChatInterface(respond,
    title="Hunyuan T1",
    examples=example_prompts,
    chatbot=chatbot
)

if __name__ == "__main__":
    demo.queue(default_concurrency_limit=40)
    demo.launch(max_threads=40)