PEP 805: Safe Parallel Python

After a year of on and off development, I am pleased to present PEP 805. Abstract This PEP proposes internal changes to CPython and a new API to support safe, parallel execution of Python. With this PEP, parallel execution of code is race free by default: objects must be explicitly declared to be safe to be shared between parallel threads, or such sharing is prohibited. This PEP builds on both PEP 703 and PEP 734 to provide a unified execution model that offers better safety than PEP 703, bett...