如何在cython中将模块作为struct的参数传递？

Question

I have no experience with cython and just started learning it. I am trying to pass a module as an argument to a struct , but I don't know how? This is a sample code I tried in Jupyter-notebook:

%load_ext cython
%%cython
cdef class A:
    pass

cdef struct person:
    int num
    object info

cdef person someone
    p1.idd = 94113
    p1.info = A()

I would appreciate to help me with that.
Actually I am trying to replace the python dict lists in my code with self-designed structs because as I read here , it's not possible to use nogil with python dicts.
If anybody could find some way to overcome the problem in the way that code runs as fast as possible , that would be highly appreciated.
Thanks.

Answer 1

The only things that can go into a C definition - what cdef describes - are C types.

Something like this would be a start, if you want to keep using structs:

ctypedef struct Info:
    char[256] address
    char[256] name
    <..>

ctypedef struct person:
    int num
    Info info

cdef class Person:
    cdef person my_struct

For simplicity, and since you aim to defined a class and use the object in Python anyway, can just make a cdef class and let Cython generate the structures for you.

cdef class Person:
    cdef char[256] name
    cdef char[256] address
    cdef int num

    <..>