Python C API (PyObject_CallMethod clear object)

googler.1.webmaster at spamgourmet.com googler.1.webmaster at spamgourmet.com
Mon Jan 26 11:47:31 CET 2009


On 26 Jan., 03:25, "Gabriel Genellina" <gagsl-... at yahoo.com.ar> wrote:
> En Sun, 25 Jan 2009 23:46:01 -0200, <googler.1.webmas... at spamgourmet.com>  
> escribió:
>
>
>
> > I have a problm with deallocating stuff. I call a function with this
> > command:
>
> > PyObject *rvalue = PyObject_CallMethod(obj, "execute","",NULL);
>
> > if(rvalue==NULL)
> >     PyErr_Print();
> > else
> >     Py_DECREF(rvalue);
>
> > Can it be, that something is missing here? Imagine I allocate an
> > object of a type:
>
> > t = MyImage()
> > ,;- syntax_error 129=)/%  #is a syntax error
>
> > How you see I would get a syntaxerror, but an object of the type
> > MyImage() is created. But its deallocated when Py_Finalize() is
> > called. What can I do to deallocate this object after
> > PyObject_CallMethod returns NULL, too? I debug it, so if rvalue!=NULL
> > the object is deallocated, but what can I do if rvalue==NULL=
>
> A syntax error is detected *before* the code runs -- so the object isn't  
> created at all.
>
> --
> Gabriel Genellina

Hi!

Yes, you are right. I got this issue not in syntax error, I get it on
a runtime error like this:

t = MyImage()
self.test("hallo")   #test takes an integer so this would throw an
exception.


Here you see, an object of the type MyImage() was created but its not
deleted. 't' is a local reference so how can I do that?


Thanks!




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