Python Internals
Python JIT: practical notes from production
The experimental copy-and-patch JIT landed in CPython 3.13 behind the –enable-experimental-jit build flag, and by 3.14 it is stable enough to enable on.
Python’s Reference Counting Has Changed (And You Probably Missed It)
Well, that’s not entirely accurate — I actually spent most of last Tuesday staring at a flame graph that absolutely refused to make sense.
Python Free Threading: The End of the GIL and the Future of Parallelism
Introduction: The Fall of the Global Interpreter Lock For over two decades, the Global Interpreter Lock (GIL) has been the single most controversial.
Unlocking True Parallelism: A Deep Dive into GIL Removal and Python’s Free-Threading Future
For decades, the Global Interpreter Lock (GIL) has been the single most controversial feature within CPython internals .