I am working with Xubuntu 18.04 Bionic and QGIS 3.4.

When I try to convert raster to vector (polygonise) with GDAL command

gdal_polygonize.py /home/tec/Documents/QGISdata/ADN_Avignon_DAB2018b/GeoTif/AviTw1kWdip0deg67a200dB_georef.tif /tmp/processing_edce935fd39d49c4b7e72e38ecf39bdf/c7ed019e0366436c80ac9ebd6e4a97b1/OUTPUT.shp -8 -b 1 -f "ESRI Shapefile" None DN

I get this message, GDAL command output

/bin/sh: 1: gdal_polygonize.py: not found

What can I do to get it working?

2 Answers 2


What worked for me:

$ sudo apt install python-gdal

This worked for me

$ sudo apt install python-gdal

I use 3.10.3-A Coruña on Linux Mint 18 (i.e. Ubuntu 18 something...)

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