Python is getting ready to lose its GIL
The Python Global Interpreter Lock (GIL) is a mechanism that prevents multiple threads from executing Python code at the same time. This has been a source of frustration for some Python users, as it can limit the performance of applications that need to use multiple cores.
PEP 703 proposes a solution to this problem by making the Python interpreter thread-safe and removing the GIL. This would allow multiple threads to execute Python code at the same time, which would improve performance for some applications.
The GIL has been a part of Python since its inception, and removing it is a major undertaking. However, the benefits of doing so are potentially significant. For example, it would allow Python to be used for more types of applications, such as high-performance computing and machine learning.
The work on PEP 703 is still in progress, but it is already showing promise. In some benchmarks, Python with the GIL removed has shown a significant performance improvement.
If you are interested in learning more about PEP 703, you can read the full proposal here: https://peps.python.org/pep-0703/
What does this mean for Python users?
If PEP 703 is implemented, it will have a significant impact on Python users. For applications that are currently limited by the GIL, such as those that use multiple cores, performance will improve. However, it is important to note that not all applications will benefit from removing the GIL.
It is also important to note that removing the GIL will introduce some new challenges for Python developers. For example, they will need to be more careful about writing thread-safe code.
Overall, PEP 703 is a positive development for Python. It has the potential to improve performance for many applications and make Python more suitable for a wider range of use cases.