On Sat, Jul 24, 2021 at 6:55 AM Dan Stromberg <drsali...@gmail.com> wrote: > > > On Fri, Jul 23, 2021 at 1:20 AM Bartosz Golaszewski <b...@bgdev.pl> wrote: >> >> Hi! >> >> I'm working on a Python C extension and I would like to expose a >> custom enum (as in: a class inheriting from enum.Enum) that would be >> entirely defined in C. > > > I'm probably missing something obvious, but why would you write new code in C > when you can just use Cython? Cython is a lot easier, and quite fast, and > should (eventually?) allow compiling to HPY instead of just "the" C extension > module interface. > > https://news.ycombinator.com/item?id=26627683 >
I'm the author and maintainer of libgpiod - the user-space library and tools for using the linux GPIO character device. The core library is written in C but we're also exposing C++ and Python bindings (with more language bindings planned). The python bindings are written as a C extension module and look like this: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/tree/bindings/python/gpiodmodule.c. We're in the process of writing the (backward incompatible) version 2 of the library in order to support the new kernel features and the C API has changed a lot so we're also rewriting the bindings. Among others: all bitwise flags have now been converted to enums, hence my question. In C++ we'll use scoped enum classes and I'd like to do a similar thing in python. What I'm doing is not aimed at using C for speed but for calling the C APIs. I know I could use SWIG but in order to make the interface elegant, it would have to be packaged in proper Python classes anyway, creating another layer of code so I prefer to just use C. Bart -- https://mail.python.org/mailman/listinfo/python-list
