使用Groq调用Llama API时遭遇API Key未配置错误的求助

我最近在尝试通过Groq Cloud调用Llama API，但一直卡在API Key未配置的错误上，试了好几种方法都没解决，实在没办法来求助了！

我已经试过在命令行里设置环境变量：

• Windows 命令行下用 set GROQ_API_KEY=api_key
• PowerShell 下用 $env:GROQ_API_KEY = "api_key"

但不管怎么操作，运行代码时还是会遇到相同的API Key未配置错误。下面是我完整的代码，麻烦各位帮我排查下问题出在哪？

from groq import Groq
from dotenv import load_dotenv
import os

# Load environment variables from .env file
load_dotenv()

# Retrieve the API key from the environment variable
api_key = os.getenv("MY_KEY")

# Initialize the Groq client with the API key
client = Groq(api_key=api_key)

# Prompt the user for input
user_input = input("Enter your message: ")

# Define the message list with the user's input
messages = [
    {"role": "user", "content": user_input}
]

# Create a chat completion request
completion = client.chat.completions.create(
    model="llama-3.3-70b-versatile",
    messages=messages,
    temperature=1,
    max_completion_tokens=1310,
    top_p=1,
    stream=True,
    stop=None,
)

# Stream and print the response
for chunk in completion:
    print(chunk.choices[0].delta.content or "", end="")

备注：内容来源于stack exchange，提问作者electroboiii