--- title: Free threaded Python past, present and future - Thomas... description: Free-threaded Python, the effort to remove the Global Interpreter Lock from CPython, is one of the biggest and most exciting changes to Python in many years.... canonical: https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Free threaded Python past, present and future - Thomas Wouters | daily.dev og:description: Free-threaded Python, the effort to remove the Global Interpreter Lock from CPython, is one of the biggest and most exciting changes to Python in many years.... og:url: https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn og:image: https://api.daily.dev/og/posts/wNb43P9qn.png og:image:alt: Free threaded Python past, present and future - Thomas Wouters og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Free threaded Python past, present and future - Thomas Wouters **[PyCon US](https://daily.dev/sources/pyconus)** · 30 min read · 0 upvotes · 0 comments ## Summary Free-threaded Python, the effort to remove the Global Interpreter Lock from CPython, is one of the biggest and most exciting changes to Python in many years. However, It can be hard to follow what that means, what effect it will have on you and your code, and how this isn't yet another Python 2 to 3 migration. This overview will explain what free-threading is, why it's a big deal, how it differs from other ways to deal with the GIL, and what the plan is for ensuring a smooth migration. We'll explain the basics of thread safety, data races, and concurrent designs, how those apply to Python code, and how this will and won't change when the GIL is disabled. And yes, we'll show some threads go brrr. Although we'll mention some complex, deeply technical problems, this is not a technical deep dive and any experience level is welcome. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Free threaded Python past, present and future - Thomas Wouters","url":"https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn"},"datePublished":"2026-07-02T18:29:14.078Z","dateModified":"2026-07-02T20:16:57.192Z","description":"Free-threaded Python, the effort to remove the Global Interpreter Lock from CPython, is one of the biggest and most exciting changes to Python in many years....","image":"https://i.ytimg.com/vi/PZu6LyiZVbM/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/PZu6LyiZVbM/sddefault.jpg","isAccessibleForFree":true,"articleSection":"PyCon US","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"PyCon US","logo":"https://media.daily.dev/image/upload/s--DLedNxG1--/f_auto,q_auto/v1777800767/logos/pyconus?_a=BAMAMiWQ0","url":"https://daily.dev/sources/pyconus"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/free-threaded-python-past-present-and-future---thomas-wouters-wnb43p9qn","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT30M","video":{"@type":"VideoObject","name":"Free threaded Python past, present and future - Thomas Wouters","description":"Free-threaded Python, the effort to remove the Global Interpreter Lock from CPython, is one of the biggest and most exciting changes to Python in many years....","thumbnailUrl":"https://i.ytimg.com/vi/PZu6LyiZVbM/sddefault.jpg","uploadDate":"2026-07-02T18:29:14.078Z","duration":"PT30M","url":"https://api.daily.dev/r/wNb43P9qn","embedUrl":"https://www.youtube.com/embed/PZu6LyiZVbM"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"PyCon US","item":"https://daily.dev/sources/pyconus"},{"@type":"ListItem","position":3,"name":"Free threaded Python past, present and future - Thomas Wouters"}]} ```