Hi Matteo, I encountered the same problem when starting processing script creation from scratch for QGIS 3.0.0. However, the Plugin Builder <https://plugins.qgis.org/plugins/pluginbuilder/> by GeoApt LLC <http://geoapt.net/> can create a processing plugin template. It includes also class that can be used directly as a processing script. I tried it in the QGIS 3.0.0 and it worked.
Hope it helps, Erno -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-Developer-f4099106.html _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer