错误1:openai.OpenAIError: The api_key client option must be set either by passing api_key.....

在通过openai创建客户端必须要设置api key，如果你事先已经在本机的环境中设置未起效可以手动设置，注意手动设置时不要用下面的形式

import openai
from openai import OpenAI

client = OpenAI()
openai.api_key = "YOUR API KEY"

如果你用的是client（OpenAI），这种方式不正确，正确的如下：

from openai import OpenAI

client = OpenAI(api_key="YOUR API KEY")

错误2: openai.BadRequestError: Error code: 400 - {'error': {'message':...

这个错误100%是因为你传入数据格式的原因，在这里需要参考文档来做，比如我实现的function calling，在这里需要描述函数，之前的描述为：

# 定义函数描述信息
    function_description = {
        "type": "function",
        "function": "get_current_weather",
        "description": "获取给定地点的当前天气",
        "parameters": {
            "type": "object",
            "properties": {
                "location": {
                    "type": "string",
                    "description": "城市名称，例如：“旧金山，CA”"
                },
                "unit": {
                    "type": "string",
                    "enum": ["celsius", "fahrenheit"]
                }
            },
            "required": ["location"]
        }
    }

这时候无论怎么运行都会出错，即BadRequestError，但是其实是格式出错，如果按照下面代码：

 # 定义函数描述信息
    function_description = [{
        "type": "function",
        "function": {
            "name": "get_current_weather",
            "description": "获取给定地点的当前天气",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "城市名称，例如：“旧金山，CA”"
                    },
                    "unit": {
                        "type": "string",
                        "enum": ["celsius", "fahrenheit"]
                    }
                },
                "required": ["location"]
            }
        }
    }]

即正确，完整代码如下：

import json
from openai import OpenAI


def get_current_weather(location, unit="fahrenheit"):
    # 实际为获取天气的接口
    return json.dumps({
        "location": location,
        "weather": "rain",
        "unit": unit,
    })


if __name__ == '__main__':
    # 定义客户端
    client = OpenAI(api_key="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")

    # 定义函数描述信息
    function_description = [{
        "type": "function",
        "function": {
            "name": "get_current_weather",
            "description": "获取给定地点的当前天气",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "城市名称，例如：“旧金山，CA”"
                    },
                    "unit": {
                        "type": "string",
                        "enum": ["celsius", "fahrenheit"]
                    }
                },
                "required": ["location"]
            }
        }
    }]

    # 发起调用
    response = client.chat.completions.create(
        model="gpt-3.5-turbo",
        messages=[{"role": "user", "content": "旧金山当前的天气如何？"}],
        tools=[function_description],
        temperature=0
    )

    tool_calls = response.choices[0].message.tool_calls

    # 如果模型确定要调用一个函数
    if tool_calls:
        # 获取模型生成的参数
        arguments = json.loads(tool_calls[0].function.arguments)

        # 调用本地函数
        weather_info = get_current_weather(**arguments)
        print(weather_info)  # 我们可以在这里看到函数调用查询到的天气信息

输出：

{"location": "San Francisco, CA", "weather": "rain", "unit": "fahrenheit"}