等待互联网连接恢复python (多线程API调用)

import requests
from concurrent.futures import ThreadPoolExecutor, as_completed

def fetch_url(url, retries=3):
    for i in range(retries):
        try:
            response = requests.get(url, timeout=5)
            response.raise_for_status()
            return response.json()
        except requests.RequestException as e:
            print(f"Error fetching {url}: {e}")
            if i == retries - 1:
                return None

urls = [
    "https://api.example.com/data1",
    "https://api.example.com/data2",
    "https://api.example.com/data3"
]

with ThreadPoolExecutor(max_workers=5) as executor:
    futures = {executor.submit(fetch_url, url): url for url in urls}
    for future in as_completed(futures):
        url = futures[future]
        try:
            data = future.result()
            print(f"Data from {url}: {data}")
        except Exception as e:
            print(f"Failed to fetch {url}: {e}")