arcpy.da.NumpyArrayToFeatureClass with existing feature class

Question

I have been learning about the NumpyArrayToFeatureClass function in the Data Access Module of Arcpy.  In the docs it says:NumPyArrayToFeatureClass will not overwrite an existing feature class, even if the overwriteOutput environment is set to True.

However, there is no mention of whether this means that the function will fail or will it append data to an existing feature class.  Can anyone tell me if this will append data to an existing feature class?

JasonScheirer · Accepted Answer

It will fail.