How to Monitor Domain Expiration Dates in Python

import whois
from datetime import datetime, timedelta
import time

def check_domain_expiry(domain_name):
    """Check when a domain expires and warn if soon."""
    try:
        w = whois.whois(domain_name)
        expiry = w.expiration_date
        # Handle list or single date
        if isinstance(expiry, list):
            expiry = expiry[0]
        days_left = (expiry - datetime.now()).days
        print(f"{domain_name}: expires in {days_left} days on {expiry.strftime('%Y-%m-%d')}")
        if days_left < 30:
            print(f"  ⚠️ WARNING: Only {days_left} days until expiration!")
        return days_left
    except Exception as e:
        print(f"Error checking {domain_name}: {e}")
        return None

if __name__ == "__main__":
    # Monitor these domains
    domains = ["google.com", "python.org", "github.com"]
    print("Domain Expiry Monitor")
    print("=" * 40)
    for domain in domains:
        check_domain_expiry(domain)
        time.sleep(1)  # Rate limiting