Hi, 2017-01-15 12:42 GMT+01:00 Yann <dr.yann.chemin at gmail.com>: > grass.core.call('i.group',ui=True) this flag is simply not supported yet. Ma -- Martin Landa http://geo.fsv.cvut.cz/gwiki/Landa http://gismentors.cz/mentors/landa