[Pyrex] Access to nested structures and arrays

[Greg Ewing]

Pierre GM wrote:
> On Monday 19 March 2007 18:55:39 Greg Ewing wrote:
> 
> > Let me know if you want an example.
> 
> Oh yes. I've been struggling with that.

It would go something like this (not tested):

   cdef extern from "Python.h":
     object PyCObject_FromVoidPtr(void *, void (*)(void *))
     void *PyCObject_AsVoidPtr(object)

   cdef class MyThing:
     MyCData *data

     def __new__(self, init_data):
       self.data = <MyData *> PyCObject_AsVoidPtr(init_data)

   def new_thing():
     MyCData *my_data = ... # get C data from somewhere
     return MyThing(PyCObject_FromVoidPtr(my_data, NULL)

--
Greg