[$] Python interpreter adds tail calls

The

Faster CPython project has been working to speed up the Python interpreter
for the past several years. Now, Ken Jin, a member of the project, has merged a

new set of changes that
have been

benchmarked as improving performance by 10% for some architectures.
The only change is switching from using computed goto statements to using
tail calls as part of the implementation of Python's bytecode interpreter — but that change allows
modern compilers to generate significantly better code.