Standalone python script - Qgis - QgsVectorLayer points to wrong feature class in gpkg

Question

GPKG file has multiple featureclasses in it. I create a layer to a specific featureclass using QgsVectorLayer but it always points to the first FC in the gpkg file.

This is a stand alone python script, not the console under the GUI.

output_gpkg = r'W:\srm\wml\Workarea\mamcgirr\Q_universal_overlap_tool\work\qscript_outputs\one_status_common_datasets_debug_version_dqu_shape_2.gpkg |layername = Legal_OGMA'
fc_input_layer = QgsVectorLayer(output_gpkg, 'test', 'ogr')
if not fc_input_layer.isValid():
 print("layer invalid.")
else:
 print("layer valid.")
for field in fc_input_layer.fields():
 print(field.name(), field.typeName())

Answer 1

Remove space in your output_gpkg.You can try typing another layer name and you will see how the first one loads as well. for example :

output_gpkg = r'W:\srm\wml\Workarea\mamcgirr\Q_universal_overlap_tool\work\qscript_outputs\one_status_common_datasets_debug_version_dqu_shape_2.gpkg |layername = INVENT'

to load the correct layer you must remove all spaces leaving it so:

output_gpkg = r'W:\srm\wml\Workarea\mamcgirr\Q_universal_overlap_tool\work\qscript_outputs\one_status_common_datasets_debug_version_dqu_shape_2.gpkg|layername=Legal_OGMA'

• Mark McGirr: Excellent. Removing the spaces fixed it. Thanks very much. It was driving me crazy.
• Marcelo Villa: Hey Mark, welcome to GIS SE. This does not really answer the question. Instead, you should upvote the question and accept it if it solved your issue.