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I'm new with PyQGIS. I need to load a raster layer from gpkg file, and i tried this way:

gpkg_raster_land_layer = "GPKG:" + path_to_gpkg + ":" + layername

r_layer = QgsRasterLayer(gpkg_raster_land_layer, layername, "gdal")
if not r_layer.isValid():
    print("Land layer failed to load!")
else:
    QgsProject.instance().addMapLayer(r_layer)

But it didn't work: Land layer failed to load! I didn't understand how to proceed to load the raster, can someone help me?

2
  • Yes, it print "Land layer failed to load!"
    – Sommo
    Mar 3, 2020 at 14:20
  • The print statement doesn't seem to match the action, though of course you may not be able to add a non valid raster. It would be useful probably to know why it's invalid, or what happens if just try to load add it without first doing a validity check. That might help you go further
    – nmtoken
    Mar 3, 2020 at 16:17

1 Answer 1

1

In my case, the following code works to load in QGIS a raster layer contained in a geopackage:

s_gpkg = "path_to_gpkg"
lyr_in = QgsRasterLayer(s_gpkg, "Test", "gdal")
if lyr_in.isValid():
    QgsProject.instance().addMapLayer(lyr_in)

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