[$] Python JIT stabilization

On April 11, Brandt Bucher posted
PEP 744 ('JIT Compilation'),
which summarizes the current state of Python's new
copy-and-patch just-in-time (JIT) compiler. The JIT is currently
experimental, but the PEP proposes some criteria for the circumstances under which it
should become a non-experimental part of Python.

The discussion of the PEP hasn't
reached a conclusion, but
several members of the community have already raised questions
about how the JIT would fit into future iterations of the Python language.