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Software-update: Python 3.15

Python is een objectgeoriënteerde programmeertaal die kan worden gebruikt om eenvoudige tot complexe platformonafhankelijke applicaties te ontwikkelen. Het is in de jaren negentig ontworpen door Guido van Rossum, die destijds in Amsterdam voor het CWI werkte. Guido was als BDFL betrokken bij de ontwikkeling van Python. Hij heeft daarnaast voor Dropbox gewerkt, ging daarna met pensioen en toen dat niet echt beviel, ging hij aan de slag bij Microsoft. Versie 3.15 is uitgekomen en de belangrijkste veranderingen die daarin zijn aangebracht zijn hieronder voor je op een rijtje gezet.

Interpreter improvements
  • PEP 661: Add sentinel built-in type
  • PEP 686: Python now uses UTF-8 as the default encoding
  • PEP 798: Unpacking in comprehensions
  • PEP 810: Explicit lazy imports for faster startup times
  • PEP 814: Add frozendict built-in type
  • PEP 829: Package startup configuration files
  • The experimental JIT compiler has been significantly upgraded, with 7-8% geometric mean performance improvement on x86-64 Linux over the standard interpreter, and 11-12% speedup on AArch64 macOS over the tail-calling interpreter
  • Improved error messages
    • Significant improvements in the standard library
  • PEP 799: A dedicated profiling package for organizing Python profiling tools
  • PEP 799: Tachyon: High frequency statistical sampling profiler
  • More color
    • New typing features
  • PEP 728: TypedDict with typed extra items
  • PEP 747: Annotating type forms with TypeForm
  • PEP 800: Disjoint bases in the type system
    • C API improvements
  • PEP 782: A new PyBytesWriter C API to create a Python bytes object
  • PEP 788: Protection against finalization in the C API
  • PEP 803, 820, 793: Stable ABI for free-threaded builds and related C API
    • Build changes
  • PEP 831: Frame pointers are enabled by default for improved system-level observability
    • Release changes
  • The official Windows 64-bit binaries now use the tail-calling interpreter
  • The official macOS binaries now install free-threading support by default

    • For more details on the changes to Python 3.15, see What’s new in Python 3.15.

    Attention macOS 27.0 IDLE or tkinter users

    When running IDLE or other GUI applications that use the tkinter module, these applications may hang when using an application's menu command that opens a dialog (for example, IDLE's About IDLE, Settings, and Open Module commands) resulting in a spinning beach ball with Force Quit needed.

    This problem is due to an operating system behavior change in macOS 27.0 that is believed to affect all current versions of the Tk graphics toolkit and thus the tkinter module in all current Python versions.

    If you depend on Tk-based applications (like IDLE) on macOS, you may want to consider deferring installing macOS 27.0 until a Tk or macOS workaround is available or testing that your application workflow is not affected. Follow issue #158053 for updates.

    Source: Tweakers.net

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