Just a small problem. You are calling your test function while adding your
callback, so it is trying to pass the None result to it.
a = om.MEventMessage.addEventCallback('SelectionChanged',test)
Just pass the name test to it instead. The callback will be the one to
actually call it.
On Monday, December 17, 2012, illunara wrote:
> Hi everybody
> I just have a small question about openMaya, it the
> MEventMessage.addEventCallback(). Here is my try:
>
> def test():
> ... print 'test'
>
> a = om.MEventMessage.addEventCallback('SelectionChanged',test())
>
> It gives me the
>
> // Error: 'NoneType' object is not callable //
> // Warning: Failed to call script callback //
>
> Help please :(
>
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