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Waarschuwing
This tutorial is now obsolete. The preferred way to do table joins via pyqgis is to run the native:joinattributestable algorithm via Python. See details at Algoritmes van Processing uitvoeren via Python (QGIS3).
This work is licensed under a Creative Commons Attribution 4.0 International License.
You are free to use the material for any purpose as long as you give appropriate credit to the original author.
Ujaval Gandhi