Python can be used to extend the functional scope of QGIS, but it doesn't always have to be a QGIS plugin: It is often worth creating new tools in QGIS with Python. How does this work?
First, this introductory talk presents the Python interface of the QGIS toolbox and discusses the possibilities and limitations of tool development (for example, in comparison to the Model Builder and Plugin development).
Then, the creation of a new QGIS tool will be demonstrated in a simple code example using a template as a basis. It will be shown where Python code needs to be adapted and what needs to be taken into account writing new tools.