On 10 April 2018 at 01:03, Stephen Bosch <post...@vodacomm.ca> wrote:
> The input types are described with terms like > "<QgsProcessingParameterVectorLayer>"; what does this mean exactly? Do I > need to pass class instances? Nope, strings/ints/layer refs/etc are fine. The class is shown in the help to indicate what values are acceptable (e.g. you can't use a layer reference for a point parameter!) > I've tried calling the algorithm this way: > >> file_grid_r = processing.run("grass7:v.to.rast", {'INPUT': grid_v, 'type': >> 0, 'use': 1, 'GRASS_REGION_PARAMETER': extent}, feedback=None) > Looks correct > But it fails. On the console, I see > >> sys:1: ResourceWarning: unclosed <socket.socket fd=3, >> family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, >> laddr=('127.0.0.1', 41358), raddr=('127.0.0.1', 37307)> That can be ignored - it's unrelated. > > If I step through the code in PyCharm and trace the exception, I see an > AttributeError: 'NoneType' object has no attribute 'messageBar'. Where is this thrown? I suspect the problem is because you're passing "feedback=None" and somewhere there's code which is expecting a valid feedback object. Can you let me know which line the exception is thrown on and I'll fix? In the meantime try passing a feedback object: feedback = QgsProcessingFeedback() Nyall > I'm not sure if this is a bug in QGIS or whether there is something wrong > with my parameters. > > Do you have any suggestions or ideas? > > Thanks > > Stephen > > > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user