--- title: PostgreSQL adapter for Python | daily.dev description: Psycopg 2.6.1, the popular PostgreSQL adapter for Python, has been released with several bug fixes. The most notable fix resolves a libcrypto callbacks... canonical: https://daily.dev/posts/postgresql-adapter-for-python-72wt5ypyc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: PostgreSQL adapter for Python | daily.dev og:description: Psycopg 2.6.1, the popular PostgreSQL adapter for Python, has been released with several bug fixes. The most notable fix resolves a libcrypto callbacks... og:url: https://daily.dev/posts/postgresql-adapter-for-python-72wt5ypyc og:image: https://api.daily.dev/og/posts/72Wt5ypYC.png og:image:alt: PostgreSQL adapter for Python 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. # PostgreSQL adapter for Python **[Psycopg](https://daily.dev/sources/psycopg)** · 1 min read · 0 upvotes · 0 comments ## Summary Psycopg 2.6.1, the popular PostgreSQL adapter for Python, has been released with several bug fixes. The most notable fix resolves a libcrypto callbacks conflict between libpq and Python (ticket #290). Additional fixes include correct escaping of lists containing only None values, proper connection unlocking after flush errors, and a fix for MinTimeLoggingCursor.callproc(). ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What was fixed in psycopg2 2.6.1? Psycopg2 2.6.1 fixes a libcrypto callbacks conflict between libpq and Python, reported as ticket #290 and fixed by Jan Urbański. It also fixes incorrect escaping of lists containing only None values (ticket #285), a connection locking bug after errors in flush (ticket #294), and a bug in MinTimeLoggingCursor.callproc() (ticket #309). _Track dependency patch notes like this on daily.dev before upgrading a production database driver._ ### Why does my psycopg2 list of None values get escaped incorrectly? This was a bug present before psycopg2 2.6.1, where lists consisting of only None values were escaped incorrectly, tracked as ticket #285. Upgrading to psycopg2 2.6.1 resolves this along with several other fixes, including a libcrypto conflict between libpq and Python. _Developers debugging driver quirks like this follow psycopg2 release fixes on daily.dev._ --- Tags: [#python](https://daily.dev/tags/python), [#postgresql](https://daily.dev/tags/postgresql) [View this post on daily.dev](https://daily.dev/posts/postgresql-adapter-for-python-72wt5ypyc) ```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":"PostgreSQL adapter for Python","url":"https://daily.dev/posts/postgresql-adapter-for-python-72wt5ypyc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/postgresql-adapter-for-python-72wt5ypyc"},"datePublished":"2026-08-23T12:22:20.267Z","dateModified":"2026-08-23T12:50:00.752Z","description":"Psycopg 2.6.1, the popular PostgreSQL adapter for Python, has been released with several bug fixes. 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