Advice to navigate through root file directories in PyROOT

ROOT
2

Hi Quentin,

It might be a problem deleting the histograms at the end of your program. Can you add either the following line before the loop:

ROOT.TH1.AddDirectory(False)

or, alternatively, right after reading every histogram:

hist.SetDirectory(0)

For reference (“Creating histograms” section):
https://root.cern.ch/doc/master/classTH1.html

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