Cách sử dụng và chuyển đổi máy chủ proxy trong Python (2026)

Cách sử dụng và chuyển đổi máy chủ proxy trong Python (2026)

asyncio.gather

pip install requests "requests[socks]" aiohttp

import requests

PROXY_URL = "http://username:password@proxy-host:proxy-port"
proxies = {"http": PROXY_URL, "https": PROXY_URL}

resp = requests.get("https://httpbin.org/ip", proxies=proxies, timeout=15)  # chỉ cho mỗi yêu cầu

session = requests.Session()
session.proxies = proxies
resp = session.get("https://httpbin.org/ip", timeout=15)  # mọi cuộc gọi trên phiên này đều sử dụng lại nó

import random
import requests
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry

PROXY_POOL = [
    "http://username:password@proxy-host-1:port",
    "http://username:password@proxy-host-2:port",
    "http://username:password@proxy-host-3:port",
]

retry = Retry(
    total=3,
    backoff_factor=0.3,
    status_forcelist=[502, 503, 504],
    allowed_methods=frozenset(["GET", "POST"]),
)

session = requests.Session()
session.mount("https://", HTTPAdapter(max_retries=retry))

def fetch_with_rotation(url: str) -> requests.Response:
    proxy = random.choice(PROXY_POOL)
    return session.get(url, proxies={"http": proxy, "https": proxy}, timeout=15)

import requests

username = "CHANNEL_ID-residential-country_us-r_10m-s_session123"
password = "PASSWORD"
proxy_url = f"http://{username}:{password}@GATEWAY_HOST:GATEWAY_PORT"

proxies = {"http": proxy_url, "https": proxy_url}
resp = requests.get("https://httpbin.org/ip", proxies=proxies, timeout=15)

import asyncio
import random
import aiohttp

PROXY_POOL = [
    "http://username:password@proxy-host-1:port",
    "http://username:password@proxy-host-2:port",
]

async def fetch(session: aiohttp.ClientSession, url: str) -> int:
    proxy = random.choice(PROXY_POOL)
    async with session.get(url, proxy=proxy, timeout=aiohttp.ClientTimeout(total=15)) as resp:
        await resp.read()
        return resp.status

async def fetch_many(urls: list[str]) -> list[int]:
    async with aiohttp.ClientSession() as session:
        return await asyncio.gather(*(fetch(session, url) for url in urls))

proxies = {
    "http": "socks5h://username:password@proxy-host:1080",
    "https": "socks5h://username:password@proxy-host:1080",
}
resp = requests.get("https://httpbin.org/ip", proxies=proxies, timeout=15)