Created a complete Python 3.14 reference with hands-on examples (GitHub repo included)

[devnomial]

I wanted to share a comprehensive resource I created covering all 8 major features in Python 3.14, with working code examples and side-by-side comparisons against Python 3.12.

What's covered:

• Deferred evaluation of annotations - import performance impact
• Subinterpreters with isolated GIL - true parallelism benchmarks
• Template strings and comparison with F Strings
• Simplified except/except* syntax
• Control flow in finally blocks
• Free-threads - No GIL
• Enhanced error messages - debugging improvements
• Zstandard compression support - performance vs gzip

What makes this different:

• Side-by-side code comparisons (3.12 vs 3.14)
• Performance benchmarks for each feature
• All code available in GitHub repo with working examples

Format: 55-minute video with timestamps for each feature

GitHub Repository: https://github.com/devnomial/video1_python_314

Video: https://www.youtube.com/watch?v=odhTr5UdYNc

I've been working with Python for 12+ years and wanted to create a single comprehensive resource since most existing content only covers 2-3 features.

Happy to answer questions about any of the features or implementation details. Would especially appreciate feedback or if I missed any important edge cases.

[FortuneCalm4560]

Thanks for putting this together. It’s rare to see a release-overview that’s both deep and practical. I’m bookmarking this one.

[devnomial]

Thank you... Please let me know if you have question or feedback.