将python列表转换为char**并返回，使Cython中的所有元素都相同

import cython

@cython.cfunc
def convert_list_to_char_pointer(lst):
    cdef char** result = <char**>malloc(len(lst) * sizeof(char*))
    cdef int i

    for i in range(len(lst)):
        cdef bytes item = lst[i].encode('utf-8')
        result[i] = <char*>malloc(len(item) + 1)
        strcpy(result[i], item)

    return result

my_list = ['hello', 'world', 'cython']
result = convert_list_to_char_pointer(my_list)

# 打印结果
for i in range(len(my_list)):
    print(result[i])

# 释放内存
for i in range(len(my_list)):
    free(result[i])
free(result)