Hi all,
I’m trying to figure out convert a crash into an exception.
The crash is coming from use of a function set when the MObject it’s
managing is pointing to a node I’ve just deleted. Here’s the shortest I
could make of it (Maya 2018).
from maya.api import OpenMaya as om
fn = om.MFnDagNode()
mobj = fn.create("transform")fn.name()# u'transform3'
mod = om.MDGModifier()
mod.deleteNode(mobj);
mod.doIt();del modfn.name()
Which throws this..
Stack trace:
Foundation.dll!TmtRefCounter::add
Foundation.dll!Tstring::operator=
OpenMaya.dll!Autodesk::Maya::OpenMaya20180000::MString::operator=
OpenMaya.dll!Autodesk::Maya::OpenMaya20180000::MFnDependencyNode::name
OpenMaya.dll!MPyMFnDependencyNode_Type::addToModule
python27.dll!PyEval_GetFuncDesc
python27.dll!PyEval_EvalFrameEx
python27.dll!PyEval_EvalCodeEx
python27.dll!PyRun_FileExFlags
python27.dll!PyRun_InteractiveOneFlags
python27.dll!PyRun_InteractiveLoopFlags
python27.dll!PyRun_AnyFileExFlags
python27.dll!Py_Main
KERNEL32.DLL!BaseThreadInitThunk
ntdll.dll!RtlUserThreadStart
Result: untitled
Fatal Error. Attempting to save in
C:/Users/marcus/AppData/Local/Temp/marcus.20180103.0935.ma
The fact that it crashes isn’t a problem, it makes sense. But what I’d like
to try and do is instead of having it crash raise an exception.
I went for MObject.isNull()
<http://help.autodesk.com/view/MAYAUL/2017/ENU/?guid=__py_ref_class_open_maya_1_1_m_object_html>
at first, but that seems to always return False.
Any ideas?
Best,
Marcus
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