--- title: New Python Library With Types and Asyncio | daily.dev description: Svix released a new version of its Python client library (>=0.53.0) adding type hints support and an asyncio-compatible variant. Developers using async code... canonical: https://daily.dev/posts/new-python-library-with-types-and-asyncio-f23aco3zd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: New Python Library With Types and Asyncio | daily.dev og:description: Svix released a new version of its Python client library (>=0.53.0) adding type hints support and an asyncio-compatible variant. Developers using async code... og:url: https://daily.dev/posts/new-python-library-with-types-and-asyncio-f23aco3zd og:image: https://api.daily.dev/og/posts/F23AcO3ZD.png og:image:alt: New Python Library With Types and Asyncio 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. # New Python Library With Types and Asyncio **[Svix Blog](https://daily.dev/sources/svix)** · 3 min read · 0 upvotes · 0 comments ## Summary Svix released a new version of its Python client library (>=0.53.0) adding type hints support and an asyncio-compatible variant. Developers using async code can now switch to SvixAsync and await calls instead of using the blocking client. The update also includes a breaking change: the exception type was renamed, since internals were consolidated to unify error handling. The Svix team says no further breaking changes are planned going forward. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I migrate from the sync Svix Python client to the asyncio version? Replace the Svix class import with SvixAsync from svix.api, instantiate it the same way with your auth token, and await calls such as svix.application.create(...) instead of calling them synchronously. This requires Svix library version 0.53.0 or later, which also added Python type hints support. _Track breaking changes like this before upgrading webhook libraries on daily.dev._ ### What breaking change was introduced in Svix Python library version 0.53.0? The exception type name was changed as part of consolidating internal error handling into a single unified type. Keeping the old name risked breaking code in subtle, hard-to-detect ways, so the maintainers deliberately renamed it to force developers to notice and update their exception handling when upgrading. _Developers planning a library upgrade can follow breaking-change notices like this on daily.dev._ ## Similar posts on daily.dev - [Svix SDKs and CLI v2 released](https://daily.dev/posts/svix-sdks-and-cli-v2-released-vmkfe9obm) · Svix Blog · 5 upvotes · 0 comments - [Svix Changelog September 2026](https://daily.dev/posts/svix-changelog-september-2026-zrvha2knm) · Svix Blog · 1 upvotes · 0 comments - [Python library “Requests” needs you to test type hints](https://daily.dev/posts/python-library-requests-needs-you-to-test-type-hints-f8b0iwk6b) · Planet Python · 0 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python) [View this post on daily.dev](https://daily.dev/posts/new-python-library-with-types-and-asyncio-f23aco3zd) ```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":"New Python Library With Types and Asyncio","url":"https://daily.dev/posts/new-python-library-with-types-and-asyncio-f23aco3zd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/new-python-library-with-types-and-asyncio-f23aco3zd"},"datePublished":"2026-08-23T07:20:33.531Z","dateModified":"2026-08-23T07:23:44.685Z","description":"Svix released a new version of its Python client library (>=0.53.0) adding type hints support and an asyncio-compatible variant. 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