I am very new to GRASS GIS. I am trying to install an add-on (r.bioclim) but I get "ERROR: 'svn' required. Please install 'svn' first". I cannot understand how to install it (or even what it is), thus I am trying a simpler way, from the Settings (as shown here: https://grass.osgeo.org/download/addons/ ). But I cannot see any menu (see image attached) and if I type r.bioclim or bioclim in the search bar, nothing shows. enter image description here I also tried to find online the .zip of the extension but I couldn't find it.

  • It is a Python script, look at grass_addon:r.bioclim)
    – gene
    May 6, 2022 at 11:43
  • @gene thanks. I copied the script into a .py but I cannot open it using the Launch user-defined script. I opened the Python editor but it throws an error: Traceback (most recent call last): File "/data/lisa/GRASS/Prove/rbioclim.py", line 7, in <module> import grass.script as grass File "/usr/lib/grass78/etc/python/grass/__init__.py", line 4, in <module> import six ImportError: No module named six I think I have to install this six, but I don't know how...
    – LT17
    May 6, 2022 at 12:53
  • As per the help center please do not include thanks or other statements of appreciation within your posts.
    – PolyGeo
    May 6, 2022 at 20:56

1 Answer 1


Regarding the first error, you probably need git (or svn) installed on your computer. Next the six python package ( see here) would probably be installed with pip install six or similar, depending on how python is installed on your system.

If you download the r.bioclim python script manually then you should place it into the standard directory for addon scripts: ~/.grass8/addons/scripts/.


  • In the end I didn't have the admin permissions, I got a sudoer to install the package for me.
    – LT17
    May 19, 2022 at 13:34

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