如何在Python包/扩展中使用Crystal?

dl ctypes .

可能如这里强调的那样: https://github.com/hyronx/crystal-shared-lib

python3

from ctypes import *

cdll.LoadLibrary("libcrystal-shared-lib.so")

crystal = CDLL("libcrystal-shared-lib.so") 

crystal.test(None) 

笔记

我现在还不确定原语是如何从Python的 None Nil ,但nil返回 0_u64

• https://docs.python.org/3/library/ctypes.html#fundamental-data-types
• https://github.com/crystal-lang/crystal/blob/391785249f66aaf5929b787b29810aeb4af0e1e8/src/nil.cr#L42

相关岗位:

• https://github.com/crystal-lang/crystal/issues/921
• https://github.com/hyronx/crystal-shared-lib
• https://docs.python.org/3.7/library/ctypes.html#module-ctypes