python / cython编译pyx：致命错误：capsule.h：没有这样的文件或目录

Question

I recently worked on a python project where I need to import some .pyx files.

However, I had a hard time import it as .pyx and compile it with the following lines:

import pyximport
pyximport.install()
from . import kl

The error is

fatal error: capsule.h: No such file or directory

And in the kl.pyx file, capsule.h is used as following:

cdef extern from "capsule.h":
     void* Capsule_AsVoidPtr(object ptr)

I am not sure what I should do. Please help me a little bit.

Alternatively , is it possible that the python script could import compiled .c (in Linux) file directly, instead of importing .pyx and compile it? When I compile it with command line, it is compiled successfully, but I don't know how my IDE (PyCharm) could import that .c file.

Thank you very much.

Answer 1

您错过了一些库，需要安装capsule.h的源代码。