Reading TRefArray with RDataFrame in PyROOT

ROOT
3

Hi @eguiraud

I just replaced TTreeReaderValue with TTreeReaderArray in your snippet.
It give the same result as the RDataFrame. (no segfault but nullptr problem)

TFile f("filename.root");
TTreeReader r("treename", &f);
TTreeReaderArray<TRefArray> rv(r, "Jet.Constituents");
while (r.Next()) {
  for (const auto & each : rv) {
    testJetCon(each);:
  }
}

Cheers,
Seungjin