requests-proxy.py

#!/usr/bin/env python3
"""
Basic requests with proxy example.

Configuration via environment variables:
    PROXY_URL       - Proxy URL (required), e.g., http://user:pass@proxy:8080
    TEST_URL        - URL to request (default: https://api.ipify.org?format=json)
    RESPONSE_HEADER - Optional header name to print from the response

Documentation: https://docs.python-requests.org/en/latest/user/advanced/#proxies
"""
import os
import sys
import requests

# Get configuration from environment
proxy_url = os.environ.get('PROXY_URL') or os.environ.get('HTTPS_PROXY')
if not proxy_url:
    print("Error: Set PROXY_URL environment variable", file=sys.stderr)
    sys.exit(1)

test_url = os.environ.get('TEST_URL', 'https://api.ipify.org?format=json')
response_header = os.environ.get('RESPONSE_HEADER')

proxies = {'http': proxy_url, 'https': proxy_url}

response = requests.get(test_url, proxies=proxies, timeout=30)

print(f"Status: {response.status_code}")
print(f"Body: {response.text}")
if response_header:
    print(f"{response_header}: {response.headers.get(response_header)}")