[GRASS-dev] How to get stop a script with an error in a function

[António Rocha]

Hi there

I have built a Py Script that is similar to r.in.aster, I mean, to 
reproject/project a file and then import into grass.

The problem is when I select a non raster file. A get an error in 
GDALWARP but the script continue.
And then it calls r.in.gdal to import and then I get ERROR 4. What I 
want is a way to "stop" the process (with grass_fatal) when I get ERROR 4.
Is this possible? can anyone give me a tip? Some approach to get the 
error. I have tried with try: except: but it didn't work out

Thanks



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