Request rejected (429) · Service Unavailable

报错分析报告

1.错误翻译

原文：Request rejected (429) · Service Unavailable
译文：请求被拒绝（429状态码）· 服务不可用

2. 原因分析

3. 解决方案

import requests
import time

def call_api_with_backoff(url, max_retries=3, initial_delay=2):
    delay = initial_delay
    for attempt in range(max_retries):
        try:
            response = requests.get(url)
            if response.status_code == 200:
                return response.json()
            elif response.status_code == 429:
                print(f"⚠️ 速率限制触发（第{attempt+1}次），等待{delay}秒后重试...")
                time.sleep(delay)
                delay *= 2  # 指数退避
            else:
                response.raise_for_status()
        except requests.exceptions.RequestException as e:
            print(f"❌ 请求失败: {e}")
            if attempt < max_retries - 1:
                time.sleep(delay)
                delay *= 2
    raise Exception("达到最大重试次数，API调用失败")

# 使用示例
try:
    data = call_api_with_backoff("https://api.example.com/endpoint")
except Exception as e:
    print(e)

4. 预防措施