Nevermind, I found the answer here:
https://gis.stackexchange.com/questions/32/expand-or-collapse-layer-groups-in-pyqgis3
Il giorno mer 12 feb 2020 alle ore 11:03 Luca Manganelli <
luca.mangane...@comune.trento.it> ha scritto:
> Hello,
>
> before, in pyqgis 2, we could use:
>
>
Hello,
before, in pyqgis 2, we could use:
self.iface.legendInterface().setGroupExpanded(nrgroup, True or False)
and, now, in pyqgis 3?
Thank you in advance :-)
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Luca Manganelli
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