PyPy does basically this. So does the tentative project Pyjion. Also Numba, but on a pre-function basis. It's not a bad ideas, and one that currently exists with varying degrees of refinement in several projects. I may have forgotten a few others. I suppose Brython in a sense.

This is very unlikely to make it into core CPython because code simplicity is one of its goals. But all those other projects would welcome your help.

On Jun 30, 2017 8:22 AM, "Steven D'Aprano" <steve@pearwood.info> wrote:

On Fri, Jun 30, 2017 at 12:09:52PM -0300, Soni L. wrote:

> CPython should get a tracing JIT that turns slow bytecode into fast
> bytecode.

Are you volunteering to do the work?

--
Steve

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