Python requests SOCKS5 Proxy Examplewith Auth, DNS, Retries & Rotation

import requests

# For credentials with special chars, use URL encoding:
# from urllib.parse import quote
# PROXY = f"socks5h://{quote('user@123')}:{quote('p@ss!')}@host:port"
PROXY = "socks5h://username:password@host:port"  # e.g. socks5h://user:pass@1.2.3.4:1080
proxies = {"http": PROXY, "https": PROXY}

resp = requests.get("https://httpbin.org/ip", proxies=proxies, timeout=20)
resp.raise_for_status()
print(resp.json())

import os
import requests
from requests.adapters import HTTPAdapter
from urllib3.util import Retry
from urllib.parse import quote

# Safe credential handling with environment variables
user = quote(os.getenv("PROXY_USER", ""))
pw = quote(os.getenv("PROXY_PASS", ""))
host = os.getenv("PROXY_HOST", "127.0.0.1")
port = int(os.getenv("PROXY_PORT", "1080"))
PROXY = f"socks5h://{user}:{pw}@{host}:{port}" if user else f"socks5h://{host}:{port}"

session = requests.Session()
session.proxies.update({"http": PROXY, "https": PROXY})

retry = Retry(
    total=5,                # total retry attempts
    connect=5,              # retry on connection errors
    read=5,                 # retry on read errors
    status=5,               # retry on certain HTTP status codes
    backoff_factor=0.5,     # 0.5, 1, 2, 4... seconds
    status_forcelist=[429, 500, 502, 503, 504],
    allowed_methods=["HEAD", "GET", "OPTIONS"]  # safe methods only (add POST with caution)
)

adapter = HTTPAdapter(max_retries=retry, pool_connections=50, pool_maxsize=50)
session.mount("http://", adapter)
session.mount("https://", adapter)

def fetch(url):
    return session.get(url, timeout=(5, 30))

if __name__ == "__main__":
    print(fetch("https://httpbin.org/ip").json())