Adding CSV layer in PyQGIS

Question

I am trying to load a series of CSV files as vectors in PyQGIS. I run this code to try to get the first one:

uri = 'file://D:/Saved Stuff/gulags/1.40.csv?delimiter=;&yField=y&xField=x'
layer = QgsVectorLayer(uri, '1.40', 'delimitedtext')
layer.isValid()
False

Obviously it won't load when I run QgsMapLayerRegistry.instance().addMapLayer(layer). When I add the CSV manually to a map it loads fine. Here is what that looks like

name;y;x;total

AMURSKII ZhELEZNODOROZhNYI ITL;51.375889;128.134147;84053

BELOMORO-BALTIISKII ITL;62.912774;34.456850;78918

BIRSKII ITL;48.999752;132.461997;11634

Can anyone help me with this?

• Thomas: What happens when you do this? uri='file://D:/Saved Stuff/gulags/1.40.csv?delimiter=%s&xField=%s&yField=%s' % (";","x","y")
• sfbernstein: Still gives me false. The modulo is just a standin

Answer 1

The problem was with your URI. (note the third slash)

Use the following as a working example:

uri = 'file:///D:/Saved Stuff/gulags/1.40.csv?delimiter=;&yField=y&xField=x'
layer = QgsVectorLayer(uri, '1.40', 'delimitedtext')