Bug report #15100

Processing preconfigured algorithms python error

Added by Giovanni Manghi about 8 years ago. Updated about 8 years ago.

Assignee:Victor Olaya
Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:23042


  • create a preconfigured algorithm, and save it
  • try open it
  • see messages below

tagging as severe as is a new feature not working as expected.

super-class __init__() of type QgsVectorLayer was never called See log for more details
2016-06-22T07:41:21    2    Uncaught error while executing algorithm
            Traceback (most recent call last):
              File "/usr/share/qgis/python/plugins/processing/core/GeoAlgorithm.py", line 199, in execute
              File "/usr/share/qgis/python/plugins/processing/core/GeoAlgorithm.py", line 368, in resolveTemporaryOutputs
                setTempOutput(out, self)
              File "/usr/share/qgis/python/plugins/processing/tools/system.py", line 78, in setTempOutput
                ext = out.getDefaultFileExtension(alg)
              File "/usr/share/qgis/python/plugins/processing/core/outputs.py", line 277, in getDefaultFileExtension
                if self.hasGeometry():
              File "/usr/share/qgis/python/plugins/processing/core/outputs.py", line 261, in hasGeometry
                return dataobjects.canUseVectorLayer(self.base_layer, [-1])
              File "/usr/share/qgis/python/plugins/processing/tools/dataobjects.py", line 95, in canUseVectorLayer
                if layer.type() == QgsMapLayer.VectorLayer and layer.dataProvider().name() != "grass":
            RuntimeError: super-class __init__() of type QgsVectorLayer was never called

Associated revisions

Revision 47eae586
Added by Martin Dobias about 8 years ago

[processing] Fix preconfigured alg creation (fixes #15100)


#1 Updated by Martin Dobias about 8 years ago

It seems like this is the case only after adding the first preconf algorithm, it also breaks the original geoalgorithm. After restart of QGIS things seem to work fine again...

#2 Updated by Martin Dobias about 8 years ago

  • Status changed from Open to Closed

Also available in: Atom PDF