I would like to run a geometry processing algorithm from the Python console while using the Edit features in-place modifier.

I copied the output from the processing history to see if it works, e.g:

processing.run("native:rotatefeatures", {'INPUT':'/path/to/layer.shp','ANGLE':40,'ANCHOR':None,'OUTPUT':'memory:'})

but wasn't surprised that it didn't. So what's the trick? (if there is one)

I'm on QGIS 3.6

1 Answer 1


As far as I can tell, there is no direct API for doing this. But the following works

from processing.gui import AlgorithmExecutor
rotatealg = QgsApplication.processingRegistry().createAlgorithmById('native:rotatefeatures')
layer = iface.activeLayer()
AlgorithmExecutor.execute_in_place(rotatealg, {'ANGLE':40, 'ANCHOR':None, 'INPUT': layer})
  • There seems to be a bug in your snipped: 'native:roatefeatures' should be 'native:rotatefeatures' (with 't').
    – Stefan
    Jul 6, 2019 at 21:24
  • Thanks. Fixed it. Jul 6, 2019 at 23:19

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