【大模型入门】ollama + lobechat打造个人专属大模型助手

# -*-  coding = utf-8 -*-import jsonimport sysimport tracebackimport logging#######################日志配置#######################import requestsfrom requests.adapters import HTTPAdapterlogging.basicConfig(    level=logging.INFO,    format='%(asctime)s [%(levelname)s]: %(message)s',  # 指定日志输出格式    datefmt='%Y-%m-%d %H:%M:%S'  # 指定日期时间格式)# 创建一个日志记录器formatter = logging.Formatter('%(asctime)s [%(levelname)s]: %(message)s')  # 指定日志输出格式logger = logging.getLogger(__name__)logger.setLevel(logging.INFO)if sys.platform == "linux":    # 创建一个文件处理器，将日志写入到文件中    file_handler = logging.FileHandler('/data/logs/app.log')else:    # 创建一个文件处理器，将日志写入到文件中    file_handler = logging.FileHandler('E:\logs\app.log')file_handler.setFormatter(formatter)# 创建一个控制台处理器，将日志输出到控制台# console_handler = logging.StreamHandler()# console_handler.setFormatter(formatter)# 将处理器添加到日志记录器中logger.addHandler(file_handler)# logger.addHandler(console_handler)DEFAULT_MODEL = "qwen1-7b"DEFAULT_IP='127.0.0.1'DEFAULT_PORT=11434DEFAULT_MAX_TOKENS = 32768DEFAULT_CONNECT_TIMEOUT=3DEFAULT_REQUEST_TIMEOUT=60DEFAULT_MAX_RETRIES=0DEFAULT_POOLSIZE=100class Model:    def __init__(self):        self.headers = {"User-Agent": "Test Client"}        self.s = requests.Session()        self.s.mount('http://', HTTPAdapter(pool_connections=DEFAULT_POOLSIZE, pool_maxsize=DEFAULT_POOLSIZE, max_retries=DEFAULT_MAX_RETRIES))        self.s.mount('https://', HTTPAdapter(pool_connections=DEFAULT_POOLSIZE, pool_maxsize=DEFAULT_POOLSIZE, max_retries=DEFAULT_MAX_RETRIES))    def chat(self, message, history=None, system=None, config=None, stream=True):        if config is None:            config = {'temperature': 0.45, 'top_p': 0.9, 'repetition_penalty': 1.2, 'max_tokens': DEFAULT_MAX_TOKENS,'n':1}        logger.info(f'config: {config}')        messages = []        if system is not None:            messages.append({"role": "system", "content": system})        if history is not None:            if len(history) > 0 and len(history) % 2 == 0:                for his in history:                    user,assistant = his                    user_obj = {"role": "user", "content": user}                    assistant_obj = {"role": "assistant", "content": assistant}                    messages.append(user_obj)                    messages.append(assistant_obj)        if message is None:            raise RuntimeError("prompt不能为空!")        else:            messages.append({"role": "user", "content": message})        logger.info(messages)        try:            merge_pload = {"model": DEFAULT_MODEL, "messages": messages, **config}            logger.info(merge_pload)            response = self.s.post(f"http://{DEFAULT_IP}:{DEFAULT_PORT}/api/chat", headers=self.headers,                                   json=merge_pload, stream=stream, timeout=(DEFAULT_CONNECT_TIMEOUT, DEFAULT_REQUEST_TIMEOUT))            str = ''            for msg in response:                # logger.info(msg)                if msg and len(msg) > 0:                    decode_msg = msg.decode('UTF-8')                    if 'n' in decode_msg :                        if len(str) == 0:                            obj = json.loads(decode_msg)                            if 'message' in obj:                                content = obj['message']['content']                                if content is not None:                                    yield content                        else:                            str = str + decode_msg                            obj = json.loads(str)                            if 'message' in obj:                                content = obj['message']['content']                                if content is not None:                                    str=''                                    yield content                    else:                        str = str + decode_msg        except Exception as e:            traceback.print_exc()if __name__ == '__main__':    model = Model()    message = '我家有什么特产？'    system = 'You are a helpful assistant.'    history = [('hi，你好','你好！有什么我可以帮助你的吗？'),('我家在天水，很好玩哦','天水是一个美丽的城市，有很多有趣的地方可以去。'),]    config = {'temperature': 0.45, 'top_p': 0.9, 'repetition_penalty': 1.2, 'max_tokens': 8192}    gen = model.chat(message=message, history=history, system=system, config=config, stream=True)    results = []    for value in gen:        results.append(value)    str = ''.join(results)    logger.info(str)