[Bf-python] bug in Camera.c
Jacques Guignot
guignot at wanadoo.fr
Sat Jun 7 12:38:10 CEST 2003
Willian Padovani Germano wrote:
>
>Which looks fine. Remove it? Could you be more specific?
>
Oops!
The "dangerous" line is at the end of static int CameraSetAttr
(C_Camera *self, char *name, PyObject *value)
when you do a Py_DECREF(valtuple) (the last Py_DECREF, not the one in
the if )
I'm not very good in ref counting, and Python is somehow strange with
that (never understood why PyNone should be incref or decrefd for instance!)
If you try this little script :
import Blender
cam = Blender.Camera.Get("Camera") ###I suppose a camera named
"Camera" exists
cam.lens = 12
and launch it 5 or 6 times (Alt-P, Alt-P,...) blender finally
segfaults. If we remove the last Decref line, it does not. :-)
Don't ask me why, I dunno...
Cheers.
J.
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