PyQGIS

Saving temporary scratch layers using PyQGIS and visualizing them in your QGIS Project

Since, I have been saving the generated files in scratch layers whenever they are intermediate products, of auxiliary nature to the process I am running. This way, they are automatically deleted, and I don’t have to worry about them after executing my code. So, I decided to summarize how I save PyQGIS tool outputs in scratch layers, in case this is useful to someone out there!

Quick workaround for PyQGIS error “file is not a directory” when saving files

This error is especially common when you are re-running a code you have already ran in the past. Sometimes, as I am coding, I run an incomplete version of my code, just to know if the compiler/interpreter accuses any errors. The codes frequently include open and saving items. I thought that the mentioned file would be overwritten every time I ran a file saving in the QGIS Python Console.

Solved: QGIS 3.20 Python Console shows an error when running Clip Vector by Extent tool

ERROR 1: Attempt to write non-multipoint (POINT) geometry to multipoint shapefile. ERROR 1: Unable to write feature 0 from layer points_layer. ERROR 1: Terminating translation prematurely after failed translation of layer points_layer (use -skipfailures to skip errors)

How to load (many) raster layers on QGIS 3.18 by batch process and alter their symbology together

Today, I am going to write about the batch processing of loading and altering the symbology of a big group of raster layers on QGIS. This tutorial was made on QGIS 3.18 Zürich, using its Python Console to load the layers.