On 2018-06-20 08:00, Stefan Behnel wrote:
Just to add another bit of background on top of the current discussion,
there is an idea around, especially in the scipy/big-data community, (and
I'm not giving any guarantees here that it will lead to a PEP +
implementation, as it depends on people's workload) to design a dedicated C
level calling interface for Python. Think of it as similar to the buffer
interface, but for calling arbitrary C functions by bypassing the Python
call interface entirely. Objects that wrap some kind of C function (and
there are tons of them in the CPython world) would gain C signature meta
data, maybe even for overloaded signatures, and C code that wants to call
them could validate that meta data and call them as native C calls.
See also
https://www.python.org/dev/peps/pep-0579/#allowing-native-c-arguments
I specifically designed PEP 580 to be extendable such that it would be
possible to add features later.
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