"Christopher's video course, "What's New in Python 3.14", covers the topics from the article and shows the new features in action. Christopher and Bartosz dug into the new release to create code examples showcasing the new features for the tutorial and course. We look at the enhanced and more colorful REPL experience, better error messages, safer hooks for live debugging, and deferred annotation evaluation. We also discuss template strings, Zstandard compression, and multiple performance improvements."
"Python 3.14 is here! Christopher Trudeau returns to discuss the new version with Real Python team member Bartosz Zaczyński. This year, Bartosz coordinated the series of preview articles with members of the Real Python team and wrote the showcase tutorial, "Python 3.14: Cool New Features for You to Try." Christopher's video course, "What's New in Python 3.14", covers the topics from the article and shows the new features in action."
Python 3.14 delivers several developer-facing improvements and performance gains. The REPL gains enhanced color and ergonomics for interactive use and improved error messages provide clearer diagnostics. New safer hooks enable live debugging without destabilizing applications. Deferred (lazy) annotation evaluation reduces runtime overhead for typing. Template strings (t-strings) offer a new literal for interpolation. Zstandard compression support is available for efficient data storage and transfer. Free-threading and subinterpreters advance concurrency options. Multiple performance improvements reduce execution cost. Guidance on adopting Python 3.14 covers when to upgrade and how to integrate new features into existing projects.
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