[$] Making multiple interpreters available to Python code
It has long been possible to run multiple Python interpreters in the same process — via the C API, but not within the language itself. Eric Snow has been working to make this ability available in the language for many years. Now, Snow has published PEP 734 ("Multiple Interpreters in the Stdlib"), the latest work in his quest, and submitted it to the Python steering council for a decision. If the PEP is approved, users will have an additional option for writing performant parallel Python code.