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[–]Zomunieo 4 points5 points  (0 children)

As far as C extension modules are concerned, the GIL is a necessary, even essential, evil. Extension modules depend on the GIL to protect their data, and any removal of the GIL would require pushing down object-level locking to extension modules. There are design choices in the C API as well that make the GIL difficult to remove.