[PD] Re: pyext close

[Thomas Grill]

Hi Frank,

> How does thie pyext._del relate to the more general __del__ method? Is
> it save to use the latter? I know, that __del__ also is called on
> delete, but I guess, using _del could be a cleaner solution?

__del__ is called when the reference count of a Python object goes to 
zero and the object is destroyed by the garbage collector.
With pyext i encountered circumstances where __del__ was delayed or 
never called (e.g. on reload), although i didn't find a memory leak.
That's why i introduced an explicit call of a _del method. Normally 
__del__ will also be called afterwards, but you can never be sure....

greetings,
Thomas