Strange behavior of 'del' command..

[Remco Gerlich]

Kim Jeong Ju wrote in comp.lang.python:
> I am currently into embedding & extending Python to my C++ project.
> And I found some strange behavior of 'del' command.
> 
> It's about deleting Python object which was instantiated from wrapped
> C++ class.
> 
> For example, let's say 'my_object' is a instance of wrapped C++ class.
> 
> >>del my_object
> 
> This works just fine. It exactly calls the destructor of C++ class and frees
> memory blocks as it supposed to do.

Actually, all it's supposed to do is remove the name from the current
namespace. _If_ nothing else is still referring to it, then it may be
removed, and the destructor would be called then. You can't assume that
'del' will call your destructor.

Repeat: del only deletes a name from the namespace.

> And here is the weird one
> 
> >>exec( 'del my_object ' )
> 
> The destructor should be called like above one. But It didn't..
> Still the symbol name was deleted.
> 
> >>my_object
> Traceback( innermost last ):
> ..
> Name error: my_object
> 
> Isn't it strange? If you got an idea what happend, please let me know
> about it.

It works fine for me in a simple test case. You probably still refer
to the object somewhere else. Is it still part of some list, or something?

We need more info about your code.
-- 
Remco Gerlich,  scarblac at pino.selwerd.nl
  8:17pm  up 96 days,  2:21,  7 users,  load average: 0.16, 0.14, 0.13