Thank you guys for your responses, appreciated. So as a study case I am building custom JIT powered regex matcher (somewhat more or less compatible with pcre). It is not a problem to build one as a stand alone application but I want it as a shared library and ultimately as a python compatible module. As a interface between rpython (C, really) and python for input I see a tuple - (program::bytes, input_string::unicode) and for output [(group0::unicode, value0::unicode), ..., ]. 1. Is it even a sane idea to use rpython toolchain to handle such task? I mean specifically embedding problem, because again as a stand alone app it is not a big deal and worth nothing. 2. Why some valid rpython code fails inside a function decorated with an entrypoint_highlevel (e.g. os.write(1, "hello world") would fail with segfault at runtime). And are there any dedicated docs describing such limitations? Cheers, magniff.
2017-06-19 22:55 GMT+03:00 Yury V. Zaytsev <y...@shurup.com>: > On Mon, 19 Jun 2017, Armin Rigo wrote: > > Answered on https://stackoverflow.com/questions/44629893/invoke-rpython- >> based-functions-from-standard-python-code >> > > I would add to that that in the case that the idea was to take some code > out of hot loops, translate it into RPython so that it runs faster, and > finally import it into cPython, then (as Armin elaborated) you're missing > the point of RPython. However, here are few alternatives to consider: > > One go-to solution would be to use Cython which lets you easily blend > Python / C up to the point of writing restricted C with Python syntax, and > import resulting Cython modules into your program running under cPython. > > A more principled solution would be to port your application to PyPy (if > any porting would be required at all), and enjoy the JIT, or else dig > around trying to figure out why exactly is that you're not getting the > speedups you were hoping for, and make PyPy better in the process! > > -- > Sincerely yours, > Yury V. Zaytsev > -- Kind regards, Aleksandr Koshkin.
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