Hi,
the actual warnings (“RuntimeWarning”) you can filter in full detail, as PyROOT maps them onto Python warnings. See the documentation of module warnings.
But these messages that are marked as “Error” can not be filtered the same way. You’ll need to set ROOT.gErrorIgnoreLevel to some high value. I recommend looking at [url]Decorator for Quiet Functions & Methods
Since none of these messages originate with PyROOT, changes there can not help this.
Cheers,
Wim