72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
from openai import OpenAI
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import os
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# 初始化 OpenAI 客户端
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client = OpenAI(
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api_key=os.getenv("DEEPSEEK_API_KEY"),
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base_url="https://api.deepseek.com",
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)
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# 定义一个函数,用于发送消息并获取模型的响应
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def send_messages(messages, tools=None):
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response = client.chat.completions.create(
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model="deepseek-chat",
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messages=messages,
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tools=tools,
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tool_choice="auto", # 让模型自主决定是否调用工具
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)
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return response.choices[0].message
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# 1. 定义工具(函数)的 Schema
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tools = [
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{
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"type": "function",
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"function": {
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"name": "get_weather",
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"description": "获取指定地点的天气信息",
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"parameters": {
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"type": "object",
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"properties": {
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"location": {
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"type": "string",
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"description": "城市和省份,例如:杭州市, 浙江省",
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}
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},
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"required": ["location"]
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},
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}
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},
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]
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# 1. 用户提问,模型决策调用工具
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messages = [{"role": "user", "content": "杭州今天天气怎么样?"}]
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print(f"User> {messages[0]['content']}\n")
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message = send_messages(messages, tools=tools)
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# 2. 执行工具,并将结果返回模型
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if message.tool_calls:
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print("--- 模型发起了工具调用 ---")
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tool_call = message.tool_calls[0]
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function_info = tool_call.function
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print(f"工具名称: {function_info.name}")
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print(f"工具参数: {function_info.arguments}")
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# 将模型的回复(包含工具调用请求)添加到消息历史中
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messages.append(message)
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# 模拟执行工具
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tool_output = "24℃,晴朗"
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print(f"--- 执行工具并返回结果 ---")
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print(f"工具执行结果: {tool_output}\n")
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# 将工具的执行结果作为一个新的消息添加到历史中
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messages.append({"role": "tool", "tool_call_id": tool_call.id, "content": tool_output})
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# 3. 第二次调用:将工具结果返回给模型,获取最终回答
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print("--- 将工具结果返回给模型,获取最终答案 ---")
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final_message = send_messages(messages, tools=tools)
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print(f"Model> {final_message.content}")
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else:
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# 如果模型没有调用工具,直接打印其回答
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print(f"Model> {message.content}")
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