Reading PEP554 https://www.python.org/dev/peps/pep-0554/#a-disclaimer-about-the-gil seems like at the current implementation of subinterpretters there will be no separate GIL …

But I am wondering, why ?

Each subinterpreter has it own object management and Garbage Collection …

Why subinterpreters should share one GIL ?

Is there any technical issues ?

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