Renaming the result of QGIS Processing Algorithm

Question

When calling a QgsAlgorithm from within another, the result will be named after this algorithm output regardless of what is setup as the output of the main one.

For instance, taking the code from the answer to this question, although the output is set with the name 'OUTPUT' and the returned dictionary is the following:

{'OUTPUT': 'clipped_xxxxxxxxxxxxxxxxxxxxx'}

the output layer is actually named 'clipped' and I cannot seem to be able to change this.

I've tried the setName() method on the QgsVectorLayer retrieved with QgsProcessingUtils.mapLayerFromString() but to no avail.

Answer 1

You can get the layer from the layer id:

output=processing.runAndLoadResults("qgis:intersection",params)
createdlayer=QgsProject.instance().mapLayer(output['OUTPUT'])
createdlayer.setName('My shiny new beautiful layer') 

Answer 2

It needs to be an actual path on your machine.

For example {'OUTPUT': '/root/data/clipped.gpkg'}