André Malo schrieb am 14.04.20 um 13:39:
> I think, it does not serve well as a policy for CPython. Since we're talking 
> hypotheticals right now, if Cython vanishes tomorrow, we're kind of left 
> empty 
> handed. Such kind of a runtime, if considered part of the compatibility 
> "promise", should be provided by the core itself, no?

There was some discussion a while ago about integrating a stripped-down
variant of Cython into CPython's stdlib. I was arguing against that because
the selling point of Cython is really what it is, and stripping that down
wouldn't lead to something equally helpful for users.

I think it's good to have separate projects (and, in fact, it's more than
one) deal with this need.

In the end, it's an external tool, like your editor, your C compiler, your
debugger and whatever else you need for developing Python extensions. It
spits out C code and lets you do with it what you want. There's no reason
it should be part of the CPython project, core or stdlib. It's even written
in Python. If it doesn't work for you, you can fix it.


> A good way to test that promise (or other implications like performance) 
> might 
> also be to rewrite the standard library extensions in Cython and see where it 
> leads.

Not sure I understand what you're saying here. stdlib extension modules are
currently written in C, with a bit of code generation. How is that different?


> I personally see myself using the python-provided runtime (types, methods, 
> GC), out of convenience (it's there, so why not use it). The vision of the 
> future outlined here can easily lead to backing off from that and rebuilding 
> all those things and really only keep touchpoints with python when it comes 
> to 
> interfacing with python itself. It's probably even desirable that way

That's actually not an uncommon thing to do. Some packages really only use
Cython or pybind11 to wrap their otherwise native C or C++ code. It's a
choice given specific organisational/project/developer constraints, and
choices are good.

Stefan
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