My self-reply: sometimes python pip management tool can look tricky to amateurs like me: a basic "pip install numpy" told me numpy was already installed. For an effective upgrade of any package one should rather type:
python -m pip install --upgrade SomePackage (source: python 2.7.16 doc) Then GRASS starts and runs like a charm! Hope this helps folks who meet the same issue. Bye, Vincent. Le jeudi 25 juillet 2019 à 09:26 +0200, Vincent Bain a écrit : > Hi, > since I upgraded my Debian system to version 10 (buster), I'm not > able > to get GRASS working. > > I pulled the latest version from Git main source code repository. The > usual compilation process runs apparently fine. When launching > grass77 > from a terminal, the startup screen appears, and lets me pick > location/mapset, but when starting GRASS session, the gui can't > start. > It throws the following error message: > > wxnviz.py: This module requires the NumPy module, which could not > be > imported. It probably is not installed [...] > > whereas NumPy is properly installed: > > pip list | grep numpy > returns: > numpy 1.12.1 > > Has anyone experienced such issue? > > Thank you, > Vincent. > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user