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Soft-deprecating re.match() Simon Willison’s Weblog Subscribe 11th September 2026 - Link Blog Soft-deprecating re.match(). Python has a concept of soft deprecation, where APIs are marked as "should no longer be used to write new code" without any promise/threat to remove them in the future. Python 3.15 release manager Hugo van Kemenade describes how in the upcoming 3.15 release soft deprecation has come for the venerable but deeply confusing re.match() function. It's now available with the much clearer alternative re.prefixmatch() name - reflecting how it anchors at the beginning of the string but not the end. Most of the time you probably want re.search() (match this pattern anywhere in the string) or re.fullmatch() (match the entire string) instead. Recent articles Some thoughts on the Navier–Stokes Millennium Prize Problem - 8th September 2026 The Pelican comparison grid for Astra is pretty interesting - 4th September 2026 OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026 This is a link post by Simon Willison, posted on 11th September 2026. python 1,282 regular-expressions 38 Monthly briefing Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments. Pay me to send you less! Sponsor & subscribe Disclosures Colophon © 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026