[Python-Dev] Let's change to C API!
J.Demeyer at UGent.be
Tue Jul 31 08:01:25 EDT 2018
On 2018-07-31 12:56, Victor Stinner wrote:
> We try to make CPython build as simple as possible. I'm quite sure
> that Cython rely on the stdlib.
It does rely on modules like "re" and "functools".
> Would depending on Cython open a
> chicken-and-egg issue?
Yes, that's a problem but it's not unsolvable. For example, we could use
the PEP 399 pure Python modules for running Cython. Or we could keep
certain "core" C modules (which are used by Cython) implemented directly
Note that Cython is not all-or-nothing: it is easy to mix pure Python
modules, Cython modules and pure C modules. You can also combine pure C
code and Cython code in the same module.
Anyway, I know that this is probably not going to happen, but I just
wanted to bring it up in case people would find it a great idea. But
maybe not many CPython core developers actually know and use Cython?
> I would be nice to be able to use something to "generate" C
> extensions, maybe even from pure Python code.
Cython has a "pure Python mode" which does exactly that. There are
several ways to include typing information, to ensure that a module
remains Python-compatible but can be compiled by Cython in an optimized way.
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