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1. • Turned off by default

     • An experimental JIT (Just-in-time) compiler is now part of the main branch in Python. However, in Python 3.13, it is turned off by default. It is not part of the default build configuration and will likely stay that way in the foreseeable future. Users can enable JIT while building CPython by specifying the following flag.
     www.infoq.com/news/2024/10/python-313-latest-features/

     Breaking down Python 3.13’s Latest Features - InfoQ

2. docs.python.org › 3 › whatsnewWhat’s New In Python 3.13 — Python 3.13.0 documentation

   docs.python.org › 3 › whatsnew

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   2 days ago · When CPython is configured and built using the --enable-experimental-jit option, a just-in-time (JIT) compiler is added which may speed up some Python programs. On Windows, use PCbuild/build.bat --experimental-jit to enable the JIT or --experimental-jit-interpreter to enable the Tier 2 interpreter.

3. realpython.com › python313-free-threading-jitPython 3.13 Preview: Free Threading and a JIT Compiler

   realpython.com › python313-free-threading-jit

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   Sep 18, 2024 · Get a sneak peek at the upcoming features in Python 3.13 aimed at enhancing performance. In this tutorial, you'll make a custom Python build with Docker to enable free threading and an experimental JIT compiler. Along the way, you'll learn how these features affect the language's ecosystem.

4. www.infoq.com › news › 2024Breaking down Python 3.13’s Latest Features - InfoQ

   www.infoq.com › news › 2024

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   Oct 9, 2024 · Furthermore, Python 3.13 allows for the experimental disabling of the Global Interpreter Lock (GIL), alongside the introduction of a Just-in-Time (JIT) compiler, enhancing performance...

5. drew.silcock.dev › blog › everything-you-need-toEverything you need to know about Python 3.13 – JIT and GIL ...

   drew.silcock.dev › blog › everything-you-need-to

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   Sep 28, 2024 · It’s not just the GIL that’s a big change in this Python release – there’s also the addition into the Python interpreter of an experimental JIT compiler. What is a JIT? JIT stands for Just in Time and is a compilation technique where machine code is produced just in time to execute it, as opposed to ahead of time (AOT) like your ...

6. www.infoworld.com › article › 2337441The best new features and fixes in Python 3.13 - InfoWorld

   www.infoworld.com › article › 2337441

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   Oct 7, 2024 · A new JIT compiler, the first no-GIL edition of Python, better errors and typing enhancement, and the removal of dead batteries are all part of Python 3.13.

7. devclass.com › 2024/01/10 › just-in-time-compilerJust-in-time compiler likely to arrive in Python 3.13 - DEVCLASS

   devclass.com › 2024/01/10 › just-in-time-compiler

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   Jan 10, 2024 · The new JIT compiler is included in the plan for Python 3.13 and will be optional, requiring the CPython build to be configured with -enable-experimental-jit. The pull request with the initial code was submitted late last month by core Python developer Brandt Bucher.

8. People also ask

   Does CPython 313 have a JIT compiler?

   • CPython 3.13 comes with a JIT compiler (disabled by default for now). It doesn’t make things much faster yet, but the infrastructure is there. Just like the Specializing Adaptive Interpreter, it will slowly gain support for more Python and in theory make a future version faster. It works using a copy-and-patch approach.

   Python 3.13

   iscinumpy.dev/post/python-313/

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   Does Python 313 support JIT?

   • That’s where Python 3.13 comes in. When you build Python 3.13 with the experimental JIT support, you’ll enable a lower-level execution layer called the Tier 2 interpreter, which breaks down Python bytecode into even more granular instructions.

   Python 3.13 Preview: Free Threading and a JIT Compiler

   realpython.com/python313-free-threading-jit/

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   Does CPython have a JIT compiler?

   • When CPython is configured and built using the --enable-experimental-jit option, a just-in-time (JIT) compiler is added which may speed up some Python programs. On Windows, use PCbuild/build.bat --experimental-jit to enable the JIT or --experimental-jit-interpreter to enable the Tier 2 interpreter.

   What’s New In Python 3.13

   docs.python.org/3/whatsnew/3.13.html

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   Is JIT a good Python compiler?

   • Now, the JIT compiler in Python 3.13 is relatively simple and won’t be doing any crazy at this stage, but it’s a really exciting development for the future of Python performance. What difference will the JIT make to me?

   Everything you need to know about Python 3.13 – JIT and GIL went up t…

   drew.silcock.dev/blog/everything-you-need-to-know-about-python-3-13/

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   How to build Python 313 without free threading & JIT support?

   • So, you’re going to build the vanilla flavor of Python 3.13 without free threading or JIT support. Ensure that your current working directory is where you compiled Python 3.13 before, and remove any generated build files with make clean. Then, configure the build without the experimental features and compile Python again.

   Python 3.13 Preview: Free Threading and a JIT Compiler

   realpython.com/python313-free-threading-jit/

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   How to enable free threading & JIT compiler in Python?

   • Navigate into the parent folder containing the Python source code, which you extracted from the downloaded archive in the previous step: Make sure to adjust the path as necessary if you opted for a more recent Python 3.13 release. Now, you can run the configure script with custom build flags to enable free threading and the JIT compiler:

   Python 3.13 Preview: Free Threading and a JIT Compiler

   realpython.com/python313-free-threading-jit/

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9. iscinumpy.dev › post › python-313Python 3.13 - ISciNumPy.dev

   iscinumpy.dev › post › python-313

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   May 9, 2024 · CPython 3.13 comes with a JIT compiler (disabled by default for now). It doesn’t make things much faster yet, but the infrastructure is there. Just like the Specializing Adaptive Interpreter, it will slowly gain support for more Python and in theory make a future version faster.