[GRASS-user] read null cell with python

GRASS GRASS user
1

Hello,

I’m writing a script where i need to read rasters to get cells values. I’m using :

    a = garray.array()
    a.read(map)

It seems that null cells are read as 0.0 How to make the difference with zero ?

I’m using Grass 7.6.1 on Linux Debian9

Thanks for your help

Frank