Listing loaded layers in QGIS with PyQGIS

Question

I've stuck on a issue about getting a list of loaded layers. I've two layers loaded, one spatial (point, line or area) and another one non spatial (PostgreSQL table).

I've tried this code but it lists only the spatial layers:

layername = []
for i in iface.mapCanvas().layers():
    layername.append(i.name())
print(layername)

I've tried QgsProject.instance().layerTreeRoot()

root = QgsProject.instance().layerTreeRoot()
ids = root.findLayerIds()
print(ids)

but it gives me a layer name plus an id.

How can I get a list of layer names from all loaded layers (spatial and non-spatial) in QGIS 3?

Welcome to GIS:SE @FranciscoCamello! The same method can be used from the post Get a list of layer names using PyQGIS (albeit it is old but the answer is still valid): layers = [layer.name() for layer in QgsProject.instance().mapLayers().values()] — Joseph, Feb 13 '19 at 10:56

score 10 · Accepted Answer · edited Nov 12 '21 at 06:03

10

You can try

layerList = QgsProject.instance().layerTreeRoot().findLayers()
for layer in layerList:
    print(layer.name())

That will give you a list of layer names

Check out the QgsLayerTree class for more info

edited Nov 12 '21 at 06:03

Taras

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answered Feb 13 '19 at 11:42

Tim

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Thanks @Tim its solve my problem. I've also tried with layerTreeRoot().findLayersIds() but it gives the name plus id – Francisco Camello Feb 13 '19 at 14:46

Listing loaded layers in QGIS with PyQGIS

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