QGIS-Python programming

This repository contains an introductory course about using Python in QGIS.

It is based on QGIS 3. If you want to use QGIS 2 instead, check the qgis2 <https://github.com/volaya/qgis-python-course/tree/qgis2>_ branch of the repository

Content

• Understanding Python and QGIS <python/python.rst>_. A brief introduction to how Python is installed within QGIS.

• The QGIS and PyQt APIs <apis/apis.rst>_. You need to know how to use these APIs before you can write Python code to be run within QGIS.

• The Python console <console/console.rst>_. The first place to start exploring the QGIS API.

• Expressions <expressions/expressions.rst>_. How to create a custom Python expression and later use it in different places in QGIS.

• Custom Python actions <actions/actions.rst>_. React to user interaction in the canvas or attributes table.

• Maptips <maptips/maptips.rst>_. Custom behaviour of map tips using QGIS expressions with Python functions.

• Macros <macros/macros.rst>_. Executing Python code to respond to QGIS events.

• Processing algorithms <processing/processing.rst>_. In case the user needs to add analysis functionality, the best way to do it is to add a Processing algorithm.

• Creating plugins <plugins/plugins.rst>_. How to create QGIS plugins that can be later distributed and installed in other QGIS instances.