cython继承 [英] cython inheritance

问题描述

我有一个A.pxd（仅带有函数声明）和A.pyx，其中仅包含具有所有函数主体的类A。

I have a A.pxd (with just declaration of functions) and A.pyx that contains just a class A with all the function body.

比起我有从A继承来的B，

Than I have B that inherits from A,

对于BI，B.pxd具有某些功能

and for B I have B.pxd with some functions

B.pyx

class Bclass(A):
    #all the funcions body

我现在想告诉B.pyx将A认为类型名称？

I want to now how to tell to B.pyx to ricognise A as a type name?

我要做什么：

B.pyx

cimport A
import A
from A import Aclass
cdef Bclass(Aclass):
   #body

但它说我：A不是类型名称

but it says me: A is not a type name

如果我仅在一个file.pyx中执行此操作，它就不会出现问题，但是与files.pxd一起运行却不会成功。

If i do this in just one file.pyx it works without problems but working with files.pxd it does not go.

推荐答案

使用

from A cimport Aclass
cdef class Bclass(Aclass):
    # ...

或

cimport A
cdef class Bclass(A.Aclass):
    # ...

请注意 Aclass 必须是 cdef 的进餐类，Cython 扩展类型 不能继承自Python类。

Note that Aclass must be cdef'fed class, Cython extension types cannot inherit from Python classes.

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