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A comment on A Python Interpreter Written in Rust. Parent comment

Re:A Python Interpreter Written in Rust by int_19h on Saturday February 02, 2019 @08:25PM (#19067147)
Other than refcounting (which is not a part of the Python language spec - it even specifically says that conforming code shouldn't rely on it), what other semantics did you have in mind?
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Re:A Python Interpreter Written in Rust by sametmax on Saturday February 02, 2019 @08:37PM (#19067205)
You can list.append from 2 threads without worrying about crashing, although I would not recommend it.

It's possible to do without the GIL, but up to now, it's been a damn to way of doing that.

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Re:A Python Interpreter Written in Rust by int_19h on Sunday February 03, 2019 @02:13AM (#19068259)
I don't think that's guaranteed, though.
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Re:A Python Interpreter Written in Rust by jlokier on Sunday February 03, 2019 @11:08AM (#19070342)
loeg says, "programs rely on this".

Guarantee or not, it constrains whether something is usable as a drop-in replacement interpreter, especially if people can't tell which programs will break, and doubly so if the breakage is a subtle data corruption race that doesn't show up in tests.

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