[Python-Dev] RE: Program very slow to finish

[M.-A. Lemburg]

Neil Schemenauer wrote:
> 
> M.-A. Lemburg wrote:
> > What is considered the "right" approach for this ? Should Python
> > objects *always* be deallocated using one of PyObject_Del() and
> > PyObject_DEL() or is PyMem_DEL() usable as well ?
> 
> PyMem_DEL should not be used since it could be using a different
> allocator then PyObject_New.
> 
> > The reason I'm asking is that the mxDateTime objects I'm
> > deallocating are actually unreferenced objects on a
> > free list, so PyObject_Del() will probably bomb on them.
> 
> Why would it bomb?  It doesn't do anything special as far as I can tell
> except free memory.  Vladimir went a bit overboard with the
> pre-processor, IMHO, so its a little hard to tell for certain.
> 
> > Also, what should be done with failing constructors ? I usually
> > use PyMem_DEL() to prevent the deallocator from being called but
> > still free the allocated memory. Is that the correct approach ?
> 
> PyObject_Del() doesn't call the deallocator function.

Thanks for the clarifications. I'll turn to using PyObject_Del()
in all mx Extensions then.

-- 
Marc-Andre Lemburg
CEO eGenix.com Software GmbH
______________________________________________________________________
Consulting & Company:                           http://www.egenix.com/
Python Software:                        http://www.lemburg.com/python/