Simon Willison’s Weblog

IPy. Handy Python module for manipulating IP addresses—use IP(ip_addr).iptype() == ’PUBLIC’ to check that an address isn’t in a private address range.

Posted 24th December 2007 at 1:19 pm

Recent articles

My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
GPT-5: Key characteristics, pricing and model card - 7th August 2025

ip 4 ipaddresses 1 ipy 1 networking 22 python 1171 security 534

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