I am writing a QGIS plugin using SAGA by Processing. Is is possible to test whether SAGA is installed and which version is on?

For GDAL, it's OK with:


You might to want to look at some of the python code for SAGA algorithm providers, especially the module SagaUtils.py - that has a getSagaInstalledVersion() function, and a few functions for building the paths etc.

This is an example from the Python Console:-

>>> processing.algs.saga.SagaUtils.getSagaInstalledVersion()

Looking at the code, it's a wrapper around an external call to saga_cmd -v with retry logic

  • This is concise and works right !
    – Jean Hemmi
    Dec 6 '15 at 22:07

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