[EMAIL PROTECTED] writes: > On 23 Oct, 10:42 pm, [EMAIL PROTECTED] wrote: >>Guido van Rossum wrote: >>>there already is something else called VPython >> >>Perhaps it could be called Fython (Python with a Forth-like VM) >>or Thython (threaded-code Python). > > I feel like I've missed something important, but, why not just call it > "Python"? ;-) > > It's a substantial patch, but from what I understand it's a huge > performance improvement and completely compatible, both at the C API > and Python source levels. > > Is there any reason this should be a separate project rather than just > be rolled in to the core? Obviously once issues like the 'Cell' macro > are dealt with.
While it seems to work reliably, I don't think the current implementation is really ``core-ready'' as it stands. I consider it more of a prototype to demonstrate the potential impact on these kinds of low-level dispatch optimizations (and for me personally an opportunity to familiarize myself with the CPython VM). IMO the main issues are: - Right now, CPython's bytecode is translated to direct threaded code lazily (when a code object is first evaluated). This would have to be merged into compile.c in some way plus some assorted minor changes. - The various things mentioned in TODO. - Finally, the core developers probably won't want to depend on Gforth (required to run Vmgen), so one might have to re-implement Vmgen (not a huge deal; I know that there are a number of unpublished versions of Vmgen floating around and IIRC one of them is even written in Python; even if not Vmgen isn't really that difficult to implement). Once that's done, however, I'd consider readability to have _increased_ if anything (compare the switch statement in vanilla Python 2.5.2's ceval.c to the patchset's ceval.vmg). Note that none of the above are really show stoppers from a user's point of view. It's about conforming to CPython's standards of neatness. Cheers, -jakob _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
